gpu: ion: Map only the vma size given

When mapping carveout buffers into userspace, only map
the size of the vma given, not the full size of the buffer
since clients may map less than the buffer size.

Change-Id: Idf1d1ee5850c0f7045c0f78bfd5841a76db90a34
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
1 file changed