minigbm: gbm.h sync gbm header

First step to removing technical debt: sync header.

This patch series is not bisectable.

The header was copied from commit 1abca2b3c84a42ab64c466bc209db42c41bba5e3.

BUG=b:145747113
TEST=emerge-nami minigbm

Cq-Depend: chromium:1963000
Change-Id: Ic19a471887f57a46de75e71c3db4791d4ae9795d
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/minigbm/+/1963000
Tested-by: Gurchetan Singh <gurchetansingh@chromium.org>
Commit-Queue: Gurchetan Singh <gurchetansingh@chromium.org>
Reviewed-by: Kristian H. Kristensen <hoegsberg@chromium.org>
Reviewed-by: Dominik Behr <dbehr@chromium.org>
1 file changed