mm: Increase number of GFP masks

The __GFP_CMA mask is now placed after all available GFP masks.
With this we need to increase the total number of GFP flags.
Do so accordingly.

Bug: 17494249
CRs-Fixed: 648978
Change-Id: Id154f604cb065bed2bed7f35f7bc995b90b87130
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Signed-off-by: Naveen Ramaraj <nramaraj@codeaurora.org>