Sound Control: Sound control for WCD93xx codec

Fully GPL'ed version.

Signed-off-by: faux123 <reioux@gmail.com>

Conflicts:
	sound/soc/codecs/Kconfig
	sound/soc/codecs/Makefile

Conflicts:
	sound/soc/codecs/Kconfig
	sound/soc/codecs/Makefile
merge most recent version of faux sound codec
Voltage Control: initial voltage control for MSM S4-Pro SOC by faux123
Voltage Control: add sysfs interface

Signed-off-by: faux123 <reioux@gmail.com>
Voltage Control: allow for lower minimums
updater prep