Fixing issue FRRouting/frr#11108
For interface based peers with peer-groups, "no neighbor capability extended-nexthop" gets added by default. This will result in IPv4 routes not having ipv6 next hops.
- How I did it
Porting the commit FRRouting/frr@8e89adc to FRR 8.2.2 which fixes the issue
- How to verify it
Load FRR and verify if the "no neighbor capability extended-nexthop" not gets added for interfaces associated with peer-groups
