test: fs: disable the metadata checksums on ext4 filesystems

If the metadata checksums are enabled, all write operations will fail.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>

test/py/tests/test_fs/conftest.py

@@ -143,6 +143,8 @@ def mk_fs(config, fs_type, size, id):
         mkfs_opt = '-F 16'
     elif fs_type == 'fat32':
         mkfs_opt = '-F 32'
+    elif fs_type == 'ext4':
+        mkfs_opt = '-O ^metadata_csum'
     else:
         mkfs_opt = ''