msm: kgsl: Add GFP_NORETRY to the page_alloc flags and handle
 errors

The most important thing for the memory allocator is to not crash
or otherwise behave badly during low memory situations. Adding
GFP_NORETRY keeps the OOM killer from being invoked.

Change-Id: Ic0dedbad00de1fc840bbfe91002d2fcb2730ebfc
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Jeff Boody <jboody@codeaurora.org>