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>
msm: kgsl: allow creation of events from the future

For contexts created with the KGSL_CONTEXT_USER_GENERATED_TS,
allow events to be created for timestamps that have not
been issued yet. Presumably these contexts know what they
are doing.

Change-Id: Iccf2e549b38e1a11850d26ee64b7279ab0b8a1ae
Signed-off-by: Jeremy Gebben <jgebben@codeaurora.org>
ocmem: free handle before returning from failure
ocmem: return 0 when free fails for client graphics
usb: gadget disconnect changes from N9005XXUENB7
support for gcc 4.8