correct WMM packet classification: o use TID_TO_WME_AC on vlan tag priority o ignore ECN bits in DSCP when mapping IP TOS and use TID_TO_WME_AC
correct WMM packet classification:
o use TID_TO_WME_AC on vlan tag priority
o ignore ECN bits in DSCP when mapping IP TOS and use TID_TO_WME_AC

MFC after:	3 days

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