Added "Speed and Compatibility" Settings page

- Show each band option individually in single-band devices
  - Show "2.4 and 5GHz" combined option in dual-band devices

- Disable 5 GHz option if the device is in the restricted country

- Disable 6 GHz option if the device is in the restricted country
  - Hide 6 GHz option if the old device does not support 6 GHz band.

Bug: 245258763
Test: manual test
atest -c WifiHotspotSpeedSettingsTest
atest -c WifiHotspotSpeedViewModelTest \
         WifiHotspotRepositoryTest

Change-Id: I358d4ff8d62df72fd5080e55f40d588c238d01fb