Description of problem:
When adding host to RHV-M with LACP bond, 'ad_actor_system=00:00:00:00:00:00' is appended to bond configuration

Version-Release number of selected component (if applicable):
4.4.1

How reproducible:
Unknown

Steps to Reproduce:
1. Install RHV-H 4.4.1 and configure bond0 as LACP (required in this environment)
2. Add the host to RHV-M
3. 'ad_actor_system=00:00:00:00:00:00' in part of the bonding configuration on the host

Actual results:
Host installation fails to complete.

Expected results:
If the above is expected, then the correct MAC should be used as a null and/or multicast value is invalid.

Additional info:

engine.log
~~~
2020-10-07 13:48:54,145+02 ERROR [org.ovirt.engine.core.vdsbroker.vdsbroker.HostSetupNetworksVDSCommand] (EE-ManagedThreadFactory-engine-Thread-251) [54a1bfdb] Command 'HostSetupNetworksVDSCommand(HostName = rhv.xxxxx.xxxxx, HostSetupNetworksVdsCommandParameters:{hostId='544155bc-bd1b-4de4-8bc1-56889614aca7', vds='Host[rhv.xxxxx.xxxxx,544155bc-bd1b-4de4-8bc1-56889614aca7]', rollbackOnFailure='true', commitOnSuccess='true', connectivityTimeout='360', networks='[HostNetwork:{defaultRoute='true', bonding='true', networkName='ovirtmgmt', vdsmName='ovirtmgmt', nicName='bond0', vlan='null', vmNetwork='true', stp='false', properties='null', ipv4BootProtocol='STATIC_IP', ipv4Address='10.244.4.20', ipv4Netmask='255.255.240.0', ipv4Gateway='10.244.0.1', ipv6BootProtocol='NONE', ipv6Address='null', ipv6Prefix='null', ipv6Gateway='null', nameServers='null'}]', removedNetworks='[]', bonds='[]', removedBonds='[]', clusterSwitchType='LEGACY', managementNetworkChanged='true'})' execution failed: VDSGenericException: VDSErrorException: Failed to HostSetupNetworksVDS, error = Internal JSON-RPC error: {'reason': '\ndesired\n=======\n---\nname: bond0\ntype: bond\nstate: up\nipv4:\n  enabled: false\nipv6:\n  enabled: false\nlink-aggregation:\n  mode: 802.3ad\n  options:\n    ad_actor_system: 00:00:00:00:00:00\n    lacp_rate: fast\n    miimon: 100\n    xmit_hash_policy: layer3+4\n  slaves:\n  - p2p1\n  - p2p2\nmac-address: 34:80:0D:85:28:34\nmtu: 9000\n\ncurrent\n=======\n---\nname: bond0\ntype: bond\nstate: up\nipv4:\n  enabled: false\nipv6:\n  enabled: false\nlink-aggregation:\n  mode: 802.3ad\n  options:\n    ad_actor_system: 00:00:00:00:00:00\n    lacp_rate: fast\n    miimon: 100\n    xmit_hash_policy: layer3+4\n  slaves: []\nmac-address: 34:80:0D:85:28:34\nmtu: 9000\n\ndifference\n==========\n--- desired\n+++ current\n@@ -13,8 +13,6 @@\n     lacp_rate: fast\n     miimon: 100\n     xmit_hash_policy: layer3+4\n-  slaves:\n-  - p2p1\n-  - p2p2\n+  slaves: []\n mac-address: 34:80:0D:85:28:34\n mtu: 9000\n\n'}, code = -32603

...

2020-10-07 13:48:54,151+02 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (EE-ManagedThreadFactory-engine-Thread-251) [54a1bfdb] EVENT_ID: SETUP_NETWORK_FAILED_FOR_MANAGEMENT_NETWORK_
CONFIGURATION(1,120), Failed to configure management network on host rhv.xxxx.xxxxx due to setup networks failure.
2020-10-07 13:48:54,151+02 ERROR [org.ovirt.engine.core.bll.hostdeploy.InstallVdsInternalCommand] (EE-ManagedThreadFactory-engine-Thread-251) [54a1bfdb] Exception: org.ovirt.engine.core.bll.network.NetworkConfigurator$NetworkConfiguratorException: Failed to configure management network
        at deployment.engine.ear.bll.jar//org.ovirt.engine.core.bll.network.NetworkConfigurator.configureManagementNetwork(NetworkConfigurator.java:245)
        at deployment.engine.ear.bll.jar//org.ovirt.engine.core.bll.network.NetworkConfigurator.createManagementNetworkIfRequired(NetworkConfigurator.java:91)
...
~~~

On the host side:

~~~
Oct  9 10:34:57 rhvxxxxx-cdm kernel: bond0: Invalid ad_actor_system MAC address.
Oct  9 10:34:57 rhvxxxxx kernel: bond0: option ad_actor_system: invalid value (00:00:00:00:00:00)
Oct  9 10:34:57 rhvxxxxx NetworkManager[34789]: <error> [1602232497.0945] platform-linux: sysctl: failed to set 'bonding/ad_actor_system' to '00:00:00:00:00:00': (22) Invalid argument
Oct  9 10:34:57 rhvxxxxx NetworkManager[34789]: <warn>  [1602232497.0945] device (bond0): failed to set bonding attribute 'ad_actor_system' to '00:00:00:00:00:00'
~~~


~~~
$ cat proc/net//bonding/bond0 
Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)

Bonding Mode: IEEE 802.3ad Dynamic link aggregation
Transmit Hash Policy: layer3+4 (1)
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
Peer Notification Delay (ms): 0

802.3ad info
LACP rate: fast
Min links: 0
Aggregator selection policy (ad_select): stable
System priority: 65535
System MAC address: 34:80:0d:85:2d:d4
Active Aggregator Info:
	Aggregator ID: 3
	Number of ports: 2
	Actor Key: 15
	Partner Key: 52
	Partner Mac Address: 00:01:41:42:00:33

Slave Interface: enp98s0f0
MII Status: up
Speed: 10000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 34:80:0d:85:2d:d4
Slave queue ID: 0
Aggregator ID: 3
Actor Churn State: none
Partner Churn State: none
Actor Churned Count: 0
Partner Churned Count: 1
details actor lacp pdu:
    system priority: 65535
    system mac address: 34:80:0d:85:2d:d4
    port key: 15
    port priority: 255
    port number: 1
    port state: 63
details partner lacp pdu:
    system priority: 127
    system mac address: 00:01:41:42:00:33
    oper key: 52
    port priority: 127
    port number: 2
    port state: 63

Slave Interface: enp98s0f1
MII Status: up
Speed: 10000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 34:80:0d:85:2d:d5
Slave queue ID: 0
Aggregator ID: 3
Actor Churn State: none
Partner Churn State: none
Actor Churned Count: 1
Partner Churned Count: 1
details actor lacp pdu:
    system priority: 65535
    system mac address: 34:80:0d:85:2d:d4
    port key: 15
    port priority: 255
    port number: 2
    port state: 63
details partner lacp pdu:
    system priority: 127
    system mac address: 00:01:41:42:00:33
    oper key: 52
    port priority: 127
    port number: 2
    port state: 63
~~~

Logs will be added to the case in a comment.