added kernel level Sound Control GPL interface (thanks to @faux123)

	modified:   arch/arm/configs/cm_fusion3_yuga_defconfig
	modified:   sound/soc/codecs/Kconfig
	modified:   sound/soc/codecs/Makefile
	new file:   sound/soc/codecs/sound_control_gpl.c
	modified:   sound/soc/codecs/wcd9310.c