test/py: Add cmd_memory dependency back to test_mmc_wr

Based on discussion with Stephen Warren there was recommendation to list
both memory and random command dependencies just in case that dependency is
not properly handled by Kconfig.

Fixes: a09c1f7e1c ("test/py: Fix MMC/SD block write test dependency")
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Stephen Warren <swarren@nvidia.com>

test/py/tests/test_mmc_wr.py

@@ -35,7 +35,7 @@ env__mmc_wr_configs = (
 
 """
 
-@pytest.mark.buildconfigspec('cmd_mmc','cmd_random')
+@pytest.mark.buildconfigspec('cmd_mmc','cmd_memory', 'cmd_random')
 def test_mmc_wr(u_boot_console, env__mmc_wr_config):
     """Test the "mmc write" command.