msm8960-common: Make msm8960-common the top level tree for 8064, 8960

Remove all first-gen MSM 8960 specific items, move that to s4-common

Change-Id: I958f776e22d09239f47cf723779bc7320a421db8
Merge "msm8960-common: Make msm8960-common the top level tree for 8064, 8960" into cm-10.1