Use bottom mic for speaker phone

Change-Id: Ib2673d797566402707c4978a08b2230d5e8be6e3
Move some common stuff to msm8930-common
Change ACDBID for PROXY Rx

Change-Id: If8dd8cb77b420cbf319bc8c743faa431ea0c18f6
Enable face detection
fix .wma playback, big thanks arco :D