sound control 3.2: Initial GPL release for WCD9320 Audio Codec

Change-Id: I14a29f3536b824f2b2a1cd1046eacefdaebee14c
sound control: kitkat compatibility fix up

Change-Id: Ifef3ffa9e3938bdc06938aab396e8a85bbc2fa57
sound control: remove taiko_read

taiko_read could sometimes causes a kernel panic, however it is not a necessary function so we simply remove everything associated.
also remove unused poweramp register controls and only retain headphone_pa_gain_show for compatibility.

Change-Id: I78b2da7d2c1e93e914bc0a4ad964365bda9ffb35
hlte: power enhancement for wacom hardware.

* always disable digitizer when the pen is inserted

Change-Id: I6c9798682f9f6349b37cb452353bd0c0e6958401