Undo stable backports

This is a squash of a bunch of stable backport patches that we
shouldn't be holding onto in msm-3.4 because they only apply to
kernels before v3.4.

Change-Id: I20e63e7a9ca69155e3e11dbb16d5ee21c7e49574
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>