hal: apply bt-sco-wb samplerate mixer

- BTSCO WB sample rate mixer control applied after AFE port opened.
  This results sample rate mismatch and voice call over BT SCO WB
  does not work
- Fix by apply the mixer control before AFE port opened

Change-Id: I7efa0db9a24d307780bde03032313ad1f454d6ac
1 file changed