Bridge port update - 11

Added changes in ethernet module for handling the #bridge #port level #admin #flag for #TC #mapping. The port level TC mapping flag will #enable or #disable the #CoS to #traffic-class #mapping #configuration on the port.  The TC mapping will enable to map CoS on frames to a traffic-class. The mapped traffic class will be used for effective #QoS treatment on the frame. By default, all CoS values are mapped to traffic-class '0' and #best-effort ( #BE ) treatment is provided.

#Ethernet update 103 ...
[commit 03441757f7fe2a998152a2bc396906fcb9493f66]