diag: Reduce error message frequency

Some diag error messages are printed with high frequency. This
cause flooding of kernel logs. Rate limiting these messages will
help reading kernel logs.

Change-Id: I477ff2394116603a27d65948a60d3460c32572d1
CRs-fixed: 594186
Signed-off-by: Katish Paran <kparan@codeaurora.org>
Sound Control: WCD9320: expose additional controls

Signed-off-by: Paul Reioux <reioux@gmail.com>
sound control 3.x: Initial GPL release for WCD9320 Audio Codec

This is first official GPL release based on my private implementation.

This release has been tested for xperia Z officially.  It may work
with other devices using the same WCD9320 Audio Codec as well, but not tested

Signed-off-by: Paul Reioux <reioux@gmail.com>

Conflicts:

	sound/soc/codecs/Makefile
sound control: WCD9320: update speaker gain control for Z1

Signed-off-by: Paul Reioux <reioux@gmail.com>
APQ8084: Fix voltage display limits

The stock max voltage is now just over 1600 on APQ8084.
This allows the stock voltages to be displayed, along with a buffer of
200 for editing.
Update config: Enable Sound Control for testing