Bridge port update - 12: PCP encoding/decoding admin flag

Added changes in ethernet module for handling the #bridge #port level #admin #flag for #PCP #mapping. The port level PCP mapping flag will #enable or #disable the PCP encoding/decoding #configuration on the port.  This flag will enable #port level #priority #code #point ( #PCP ) #encoding configuration entries and #decoding configuration entries on provider bridges. By default, #CoS and #DEI values as per the translation tables defined in #802-1Q-2011 will be used which can be further fine tuned by the operator.

#Ethernet update 105 ...
[commit 73db4c6913e89424c654ca7fa99fb36137ab9fb2]