Description of problem:
VLAN_EGRESS_PRIORITY_MAP option is not applied by modifying the ifcfg files when NetworkManager is not handling the vlan interface. 

Version-Release number of selected component (if applicable):
Red Hat Enterprise Linux Server release 7.3 (Maipo)
3.10.0-514.2.2.el7.x86_64
NetworkManager-1.4.0-13.el7_3.x86_64                        Sun Feb 26 12:12:09 2017

How reproducible: Have the interface not handled my NetworkManager and change the egress option manually by editing the ifcfg file.

Steps to Reproduce:
1. Edit the ifcfg file with the desired priority
2. Restart network service
3. Check /proc/net/vlan/vlanX

Actual results:
The priority is not applied. 

- With NM_CONTROLLED=yes

[root@localhost ~]# cat /proc/net/vlan/team0.10 
team0.10  VID: 10	 REORDER_HDR: 1  dev->priv_flags: 1
         total frames received            0
          total bytes received            0
      Broadcast/Multicast Rcvd            0

      total frames transmitted           11
       total bytes transmitted         1650
Device: team0
INGRESS priority mappings: 0:0  1:0  2:0  3:0  4:0  5:0  6:0 7:0
 EGRESS priority mappings: 
[root@localhost ~]# vi /etc/sysconfig/network-scripts/ifcfg-team0.10 
[root@localhost ~]# grep -i egress /etc/sysconfig/network-scripts/ifcfg-team0.10
VLAN_EGRESS_PRIORITY_MAP=0:3,1:3,2:3,3:3,4:3,5:3,6:3,7:3
[root@localhost ~]# systemctl restart network 
[root@localhost ~]# cat /proc/net/vlan/team0.10 
team0.10  VID: 10	 REORDER_HDR: 1  dev->priv_flags: 1
         total frames received            0
          total bytes received            0
      Broadcast/Multicast Rcvd            0

      total frames transmitted           10
       total bytes transmitted         1308
Device: team0
INGRESS priority mappings: 0:0  1:0  2:0  3:0  4:0  5:0  6:0 7:0
 EGRESS priority mappings: 0:3 1:3 2:3 3:3 4:3 5:3 6:3 7:3 <---

- With NM_CONTROLLED=no 

[root@localhost ~]# egrep -i -e  "NM|egress" /etc/sysconfig/network-scripts/ifcfg-team0.10
VLAN_EGRESS_PRIORITY_MAP=0:3,1:3,2:3,3:3,4:3,5:3,6:3,7:3
NM_CONTROLLED=no

[root@localhost ~]# cat /proc/net/vlan/team0.10 
team0.10  VID: 10	 REORDER_HDR: 1  dev->priv_flags: 1
         total frames received            0
          total bytes received            0
      Broadcast/Multicast Rcvd            0

      total frames transmitted           22
       total bytes transmitted         3161
Device: team0
INGRESS priority mappings: 0:0  1:0  2:0  3:0  4:0  5:0  6:0 7:0
 EGRESS priority mappings:     <---------


Expected results:
Have the egress priority mapping applied. 

Additional info: 
Customer is not able to use NetworkManager because they are using Redhat OSP for Openstack, and it is required to have it disabled.

Let me know if more info is required. 

Thank you, 
Fani