test/py: Run simple dm commands without checking

Just to make sure that dm commands can operate.
This was the problem on Microblaze in past without fixing manual
relocation.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Link: https://lore.kernel.org/r/e6c4b8b44445c16cee84436627642ccc9886f507.1657191580.git.michal.simek@amd.com
diff --git a/test/py/tests/test_dm.py b/test/py/tests/test_dm.py
index 97203b5..ea93061 100644
--- a/test/py/tests/test_dm.py
+++ b/test/py/tests/test_dm.py
@@ -33,3 +33,11 @@
     response = u_boot_console.run_command('dm drivers')
     for driver in drivers:
         assert driver in response
+
+@pytest.mark.buildconfigspec("cmd_dm")
+def test_dm_uclass(u_boot_console):
+    response = u_boot_console.run_command("dm uclass")
+
+@pytest.mark.buildconfigspec("cmd_dm")
+def test_dm_devres(u_boot_console):
+    response = u_boot_console.run_command("dm devres")