msm: rpm-smd: Configure WQ for higer priority

When the workqueue runs at a lower priority, it gets starved by higher
priority threads. Bump the WQ priority to high to ensure rpm smd work
queue gets a fair chance

Change-Id: I06b864611cf45afe6931d6030327806032894663
Signed-off-by: Mahesh Sivasubramanian <msivasub@codeaurora.org>
(cherry picked from commit e0eccf8f6dece61cdb639c4b43374c34c3acf3ea)
msm: hotplug: lock 500, boost 2500, lane 400 Thanks@anarkia1976.
disable QUEUE_STATS.
gpu: ion: Sync CMA caching logic with carveout heap.

Change-Id: Id759d442a45a54ae6b3410f01a208728cb040a52

Conflicts:
	drivers/gpu/ion/ion_cma_heap.c

Conflicts:
	arch/arm/configs/hells_defconfig