Merge "Wifi: Add 6GHz band to getWifiBand method" into rvc-dev am: 8098083832 am: defba844ca am: 3145c53bf4

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/NetworkStack/+/11688803

Change-Id: I72b1a72e90416e26508987920eb6ed4ad97ff5cb