Bug(eos_designs): BGP vlan config should not have `redistribute igmp` when belonging to a VRF with `evpn multicast`

[ClausHolbechArista]

• having redistribute igmp for a svi/vlan belonging to a VRF with evpn multicast is an issue because it could cause conflicts in the control-plane as far I know.

Originally posted by @krikoon73 in https://github.com/aristanetworks/avd/issues/3462#issuecomment-1884638318

[ClausHolbechArista]

We may have to implement this behavioral change behind a knob, or wait for 5.0.