hal: reset backend sample rate if device backend is not supported

During playback, output stream sample rate mismatches with device
backend supported sample rate. And the backend sample rate is still
set to stream sample rate. This causes mute issue happens.

Fix it by resetting backend sample rate at default sample rate if
backend supported sample rate and stream sample rate are mismatched.

CRs-Fixed: 2293122
Change-Id: I72da6ff176d0558cb7635a265d5fde5a9ea3942a