Bridge port update - 15: optimizing MMRP configuration

#Hard-link ed #bridge #port #MMRP parameters with standard #bridge #port in ethernet module. This will reduce the memory requirement for maintaining bridge port MMRP configuration and enables easy access to these parameters. Also referencing bridge port MMRP configuration parameters through the standard bridge port.

#Ethernet update 113 ...
[commit 99d36f4eac81d5df85680387f7557ac0dca0e251]