msm: kgsl: Fix Z180 memory leak

Decerement entry refcount, which incremented
in kgsl_sharedmem_find_region.

CRs-Fixed: 635747
Change-Id: I621ba8f8e119a9ab8ba5455b28a565e3cae2f7cd
Signed-off-by: Hareesh Gundu <hareeshg@codeaurora.org>
Signed-off-by: poondog <markj338@gmail.com>
PATCH: Linux 3.4.21
PATCH: Linux 3.4.22
PATCH: Linux 3.4.23
PATCH: Linux 3.4.24
PATCH: Linux 3.4.25
PATCH: Linux 3.4.26
PATCH: Linux 3.4.27
PATCH: Linux 3.4.28
PATCH: Linux 3.4.30
PATCH: Linux 3.4.32
PATCH: Linux 3.4.33
PATCH: Linux 3.4.34
PATCH: Linux 3.4.35
PATCH: Linux 3.4.36
PATCH: Linux 3.4.37
PATCH: Linux 3.4.38

Conflicts:
	kernel/time/tick-sched.c
PATCH: Linux 3.4.40

Conflicts:
	arch/x86/boot/compressed/Makefile
Revert "PATCH: Linux 3.4.38"

causes issues.

Conflicts:
	Makefile
update build info