BT headset fixes and hacks

Conflicts:
	sound/soc/codecs/tlv320aic3008.c

	modified:   arch/arm/mach-tegra/board-enrc2b-audio.c
	modified:   sound/soc/codecs/tlv320aic3008.c

Change-Id: Ied1bac1944580d4c3916091c7b55981b7a6cc43c