drm/etnaviv: switch GEM allocations to __GFP_RETRY_MAYFAIL

Now that we have a GFP flags with the expected semantic of "try reasonably
hard to find memory, but don't OOM", we should start to use it.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>

drivers/gpu/drm/etnaviv/etnaviv_gem.c

@@ -663,7 +663,7 @@ static struct drm_gem_object *__etnaviv_gem_new(struct drm_device *dev,
 		 */
 		mapping = obj->filp->f_mapping;
 		mapping_set_gfp_mask(mapping, GFP_HIGHUSER |
-				     __GFP_NORETRY | __GFP_NOWARN);
+				     __GFP_RETRY_MAYFAIL | __GFP_NOWARN);
 	}
 
 	if (ret)