Migrate mpq demux driver from kernel 3.10 to 3.18

This change migrates all the relevant files consisting of the mpq
demux driver and its plugins, including the addition of TSPPv1 HW driver.
The snapshot is taken as of msm-3.10, commit 1d1c751febc370 ("Merge "msm:
kgsl: Set IOMMU context and AHB offsets for A5xx"")
In addition, a few minor code changes are introduced to resolve some
checkpatch warnings, typos and other style issues.
TSPPv2 driver and its mpq demux plugins which were only relevant for
8092 and are now obsolete, were dropped.

Change-Id: I074d199939c686597b83cd5a60a7e87d029d3fc5
Signed-off-by: Gilad Broner <gbroner@codeaurora.org>