hal: 8916 & 8974 platform convergence

- Convergence specific to SDM660 and SDM429
- Add audio_configs.xml for SDM845 and SDM710
- Add wsa feature flag to configs file for
  msmnile and kona.

Change-Id: Ia9b1923e94014a62743e9a6f55bb007e11c0d921
56 files changed