Merge "msm: kgsl: set vm_pgoff of vma to zero"

	entry->memdesc.useraddr = vma->vm_start;

	/*

	 * kgsl gets the entry id or the gpu address through vm_pgoff.

	 * It is used during mmap and never needed again. But this vm_pgoff

	 * has different meaning at other parts of kernel. Not setting to

	 * zero will let way for wrong assumption when tried to unmap a page

	 * from this vma.

	 */

	vma->vm_pgoff = 0;

	trace_kgsl_mem_mmap(entry);

	return 0;

}