[rdkb][common][hal][Refactor RadioExtChannel]

[Description]
Refactor RadioExtChannel. Remove set 80+80 condition cause mt76 is not support.
1. Add getRadioExtChannel.
2. Refactor setRadioExtChannel and runtime set channel flow.
3. Refactor getRadioOperatingChannelBandwidth for 2G band set HT40+/-.

[Release-log]

Change-Id: I09ab7a168cb70f892ebcd3905bf871d2c0d5118d
1 file changed
tree: 73148787651f5326f98657a87ff3d3254d86acc7
  1. src/