minigbm: fixup! align minigbm functions names with upstream libgbm

Adding missing plane handle API renaming.

Change-Id: I33c4b4bcc5097ca568c95eb8c3718c3f790fd996
Reviewed-on: https://chromium-review.googlesource.com/1170773
Commit-Ready: Maksim Sisov <msisov@igalia.com>
Tested-by: Maksim Sisov <msisov@igalia.com>
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
diff --git a/gbm.h b/gbm.h
index 0398ac2..58ce07b 100644
--- a/gbm.h
+++ b/gbm.h
@@ -399,9 +399,13 @@
 size_t
 gbm_bo_get_plane_count(struct gbm_bo *bo);
 
+/* Deprecated */
 union gbm_bo_handle
 gbm_bo_get_plane_handle(struct gbm_bo *bo, size_t plane);
 
+union gbm_bo_handle
+gbm_bo_get_handle_for_plane(struct gbm_bo* bo, size_t plane);
+
 int
 gbm_bo_get_plane_fd(struct gbm_bo *bo, size_t plane);