wifi: add dfs channel to available channel list when device support it

Root cause: The frameworks check the available channel list in each band
when starting bridged AP. If device only advertise 5GHz dfs channels, then
the device will always fail to enable bridged AP because there are no
available channels on the 5G band.

Solution: add dfs channel to available channel list when device support it

Bug: 204403813
Test: atest -c FrameworksWifiTests

Change-Id: I823f7f5afadc27ce12bbcf4ec1a391b0fecb2567
Merged-In: I823f7f5afadc27ce12bbcf4ec1a391b0fecb2567
(cherry picked from commit 89c6957212040ca7644ab46d5bdc0f2b17e620ff)
Merged-In:I823f7f5afadc27ce12bbcf4ec1a391b0fecb2567
2 files changed