[202012] [orchagent]: Support for setting switch level DSCP to TC QoS map (cherry-pick from master) #2046
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What I did
Added support for setting switch level DSCP to TC QoS map. cherry picked the following -
#2023
Why I did it
This is required to set correct DSCP -> TC QoS map for tunnels else they will point to some default QoS map (DSCP/8 = TC) which is not correct.
How I verified it
This needs SAI change to support this capability. Verified this to be working fine on T0 testbed with mock dual ToR topology.
Details if related