msm8960-common: set some properties

Use highest quality audio resampler
Enable KSM
Re-enable HW AAC encoder, it no longer seems to intefere with video
recording pause
Actually use that 7 step call volume

Change-Id: I5f48f955f0fbf0aebce82b5babeb338bffa86290
overlay: remove network_mode overlay

Change-Id: I5095da671eb8065d2a8268751d7755d83e8ccc1d