Description of problem:
Currently when trying to create a security rule specifying ports for the protocol 112 we have an error:
~~~
#openstack security group rule create 058b5d6c-3329-4c66-b7cd-0f85c73ec5fe  --protocol 112 --egress --dst-port 1:65535
Error while executing command: BadRequestException: Unknown error, {"NeutronError": {"message": "Invalid protocol 112 for port range, only supported for TCP, UDP, UDPLITE, SCTP and DCCP.", "type": "SecurityGroupInvalidProtocolForPortRange", "detail": ""}}
~~~

This error would be more understandable if make it explicit that the issue is that this protocol doesn't need to have a port specified to it, something like this:
~~~
Invalid port range specified for protocol 112. Port ranges are only supported for TCP, UDP, UDPLITE, SCTP and DCCP.
~~~


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


How reproducible:
Always

Steps to Reproduce:
1. Create a security group
2. Create a security group rule with protocol 112 and specifying a port range

Actual results:
~~~
Error while executing command: BadRequestException: Unknown error, {"NeutronError": {"message": "Invalid protocol 112 for port range, only supported for TCP, UDP, UDPLITE, SCTP and DCCP.", "type": "SecurityGroupInvalidProtocolForPortRange", "detail": ""}}
~~~

Expected results:
A more understandable error message:
~~~
Invalid port range specified for protocol 112. Port ranges are only supported for TCP, UDP, UDPLITE, SCTP and DCCP.
~~~

Additional info: