hal: Reset A2DP decoder config on suspend/stop/close

TX path is muted for voice call concurrency with LDAC ABR.
This is because A2DP decoder format sent for ABR TX feedback
is not being reset on A2DP suspend. It leads to AFE TX port
being configured for ABR instead of SCO TX during voice call.
Fix this by resetting A2DP decoder format on A2DP suspend or
stop or close.

Change-Id: I172bcef1c0aee56a29fe251c14c6973a812706d5