[rdk-b][mt7986][wifi-hal][Add SupportedFrequencyBands and SupportedStandards]

[Description]
Refactor get supported frequency band and standards.
The method of supported standard function is refer to iwinfo implementation.

[Release-log]
N/A

Change-Id: Ia7dfb41126a3799cc5547c53bba2f6e56df98576
1 file changed
tree: 302ab5b89143fae69096d9f74735d2ba3977bc93
  1. src/