msm: kgsl: Add Qualcomm GPU driver

Snapshot of the Qualcomm Adreno GPU driver (KGSL) as of msm-4.9
commit e023d014d2039d59d0999e73984ccf0cc6e60bc7 (msm: pcie:
fix PCIe L0s and L1 ASPM support).

Fixed compile errors,checkpatch issues and API changes:
	*  Rename function _copy_from_user() to kgsl_copy_from_user()
	*  Fixup vm_fault API
	*  Rename fence API to dma_fence API
	*  Stop using scm_call()
	*  Fixup header includes
	*  Fix IDR API usage
	*  Fix __mutex_owner usage

Change-Id: Ib35ff402b3b0a14a94bc2568b34be6364ef2e882
Signed-off-by: Urvashi Agrawal <urvaagra@codeaurora.org>