radeon: pass flags that can change shaders to disk_cache_create()

I wasn't sure if I should filter the flags so that we only use
flags that actually change the shader output. To avoid manual
updates we just pass in everything for now.

Reviewed-by: Eduardo Lima Mitev <elima@igalia.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

src/gallium/drivers/radeon/r600_pipe_common.c

@@ -868,7 +868,8 @@ static void r600_disk_cache_create(struct r600_common_screen *rscreen)
 		if (res != -1) {
 			rscreen->disk_shader_cache =
 				disk_cache_create(r600_get_chip_name(rscreen),
-						  timestamp_str, 0);
+						  timestamp_str,
+						  rscreen->debug_flags);
 			free(timestamp_str);
 		}
 	}