[rdk-b][mt7986][wifi-hal][Refactor power related functions]

[Description]
Refactor get and set power functions with iw command.
1. wifi_getRadioTransmitPower output absolute value in dbm.
2. wifi_setRadioTransmitPower and wifi_getRadioPercentageTransmitPower use percentage values and the value must in supperted list e.g. 0,25,50,75,100.

[Release-log]
N/A

1 file changed
tree: 0bf1184cce4da7a3067f0972bca4520575c17802
  1. src/