Oppo Find 7 June 27, 2014 changes: sound/soc

Change-Id: Iac40cc9aee4d451c1ac97e00bdef50dee1652575
Find7: fix headset detection and buttons

Change-Id: I51ba60ac22e8422dd88d6b49bd484513ab43264d

Conflicts:
	sound/soc/codecs/wcd9320.c
	sound/soc/codecs/wcd9xxx-mbhc.c
	sound/soc/msm/msm8974.c
arch/arm/boot/dts OPPO-Source updates

SVN 8446

Change-Id: I23ba9c2498c2655ca7526d1666f31a1cd6ef4358