msm8960: Use retire fence from MDP driver

Change-Id: Ic5d3e7d4cee127fabbdaf6f7b1dd2395347a22d9
msm8960: Remove obsolete ALSA HAL

Change-Id: I24c87b17ce81d011c8e9c4b066a9ff51cdaf1bc3
msm8960: Use dualmic device for VOIP calls

Change-Id: I4ba9be2efbd10e867686a6df7975c63b29ba0cdf