asoc: codecs: wcd938x: Enable EAR over INT2 chain

INT2 chain drives AUX output to WCD.
EAR DAC on WCD can take input from HPHL/AUX chains.
Add register sequence updates to support EAR DAC
over AUX chain path also based on mixer setting.

Change-Id: I71db6c02f4579e3beba2816c1cfa5a492d91d702
Signed-off-by: Laxminath Kasam <lkasam@codeaurora.org>