[SAI-P4] Update the model to reflect the fact that SET_OUTER_VLAN_ID action affects the packet if packet is VLAN tagged and Update model to rewrite dst MAC on IPMC decap

[SAI-P4] Update the model to reflect the fact that SET_OUTER_VLAN_ID action affects the packet if packet is VLAN tagged and Update model to rewrite dst MAC on IPMC decap #5731