graphics_Gbm: respect gbm_bo_map flags

The gbm map API requires that we pass in valid map
flags.

BUG=chromium:737328
TEST=compiles

Change-Id: I1d965338ed26225ddf5be2594c153ba86a9a8216
Reviewed-on: https://chromium-review.googlesource.com/565189
Commit-Ready: Gurchetan Singh <gurchetansingh@chromium.org>
Tested-by: Gurchetan Singh <gurchetansingh@chromium.org>
Reviewed-by: Joe Kniss <djmk@google.com>
diff --git a/client/site_tests/graphics_Gbm/src/gbmtest.c b/client/site_tests/graphics_Gbm/src/gbmtest.c
index 0837c40..1fe9c5f 100644
--- a/client/site_tests/graphics_Gbm/src/gbmtest.c
+++ b/client/site_tests/graphics_Gbm/src/gbmtest.c
@@ -622,7 +622,8 @@
 	bo = gbm_bo_create(gbm, width, height, GBM_FORMAT_ARGB8888, GBM_BO_USE_LINEAR);
 	CHECK(check_bo(bo));
 
-	addr = gbm_bo_map(bo, 0, 0, width, height, 0, &stride, &map_data, 0);
+	addr = gbm_bo_map(bo, 0, 0, width, height, GBM_BO_TRANSFER_READ_WRITE, &stride,
+		          &map_data, 0);
 
 	CHECK(addr != MAP_FAILED);
 	CHECK(map_data);
@@ -638,7 +639,8 @@
 	stride = 0;
 	addr = map_data = NULL;
 
-	addr = gbm_bo_map(bo, 0, 0, width, height, 0, &stride, &map_data, 0);
+	addr = gbm_bo_map(bo, 0, 0, width, height, GBM_BO_TRANSFER_READ_WRITE, &stride,
+		          &map_data, 0);
 
 	CHECK(addr != MAP_FAILED);
 	CHECK(map_data);