cros_gralloc: handle memfd_create availability

BUG=b:172031518
TEST=vts -m VtsHalGraphicsMapperV4_0TargetTest

Change-Id: I9a7a0237620ab2468c014e0778976b379b757acf
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/minigbm/+/2521454
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
Tested-by: Jason Macnak <natsu@google.com>
Commit-Queue: Jason Macnak <natsu@google.com>
Auto-Submit: Jason Macnak <natsu@google.com>
1 file changed