s/gbm_bo_get_plane_fd/gbm_bo_get_fd_for_plane/

This CL follows up on a comment in crrev/c/2808787 and updates one
of the gbm function names.

BUG=b:183760490
TEST=emerge && deploy on volteer

Change-Id: I74db64c7bcb153c47910282413b9b47656ca30e7
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/drm-tests/+/2815599
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
Commit-Queue: Miguel Casas <mcasas@chromium.org>
Tested-by: Miguel Casas <mcasas@chromium.org>
4 files changed