gpu: ion: Clear GFP_WAIT flag on high order allocations

This will prevent the kernel from kicking off compaction
when higher order allocations are made.  Instead we will
get these high order allocations only if they are readily
available.

Change-Id: Id25d3c47c57ced182f9968e01d4cb6f06c5c9744
Signed-off-by: Rebecca Schultz Zavin <rebecca@android.com>
Git-commit: f6e78b979a6973610bc091db72c52adda6ac872d
Git-repo: https://android.googlesource.com/kernel/common


Signed-off-by: Laura Abbott <lauraa@codeaurora.org>