test/py: Drop assigning ubman to cons

Now that we have a shorter name, we don't need this sort of thing. Just
use ubman instead.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/test/py/tests/test_source.py b/test/py/tests/test_source.py
index f0437aa..970d8c7 100644
--- a/test/py/tests/test_source.py
+++ b/test/py/tests/test_source.py
@@ -11,27 +11,26 @@
 @pytest.mark.buildconfigspec('fit')
 def test_source(ubman):
     # Compile our test script image
-    cons = ubman
-    mkimage = os.path.join(cons.config.build_dir, 'tools/mkimage')
-    its = os.path.join(cons.config.source_dir, 'test/py/tests/source.its')
-    fit = os.path.join(cons.config.build_dir, 'source.itb')
-    utils.run_and_log(cons, (mkimage, '-f', its, fit))
-    cons.run_command(f'host load hostfs - $loadaddr {fit}')
+    mkimage = os.path.join(ubman.config.build_dir, 'tools/mkimage')
+    its = os.path.join(ubman.config.source_dir, 'test/py/tests/source.its')
+    fit = os.path.join(ubman.config.build_dir, 'source.itb')
+    utils.run_and_log(ubman, (mkimage, '-f', its, fit))
+    ubman.run_command(f'host load hostfs - $loadaddr {fit}')
 
-    assert '2' in cons.run_command('source')
-    assert '1' in cons.run_command('source :')
-    assert '1' in cons.run_command('source :script-1')
-    assert '2' in cons.run_command('source :script-2')
-    assert 'Fail' in cons.run_command('source :not-a-script || echo Fail')
-    assert '2' in cons.run_command('source \\#')
-    assert '1' in cons.run_command('source \\#conf-1')
-    assert '2' in cons.run_command('source \\#conf-2')
+    assert '2' in ubman.run_command('source')
+    assert '1' in ubman.run_command('source :')
+    assert '1' in ubman.run_command('source :script-1')
+    assert '2' in ubman.run_command('source :script-2')
+    assert 'Fail' in ubman.run_command('source :not-a-script || echo Fail')
+    assert '2' in ubman.run_command('source \\#')
+    assert '1' in ubman.run_command('source \\#conf-1')
+    assert '2' in ubman.run_command('source \\#conf-2')
 
-    cons.run_command('fdt addr $loadaddr')
-    cons.run_command('fdt rm /configurations default')
-    assert '1' in cons.run_command('source')
-    assert 'Fail' in cons.run_command('source \\# || echo Fail')
+    ubman.run_command('fdt addr $loadaddr')
+    ubman.run_command('fdt rm /configurations default')
+    assert '1' in ubman.run_command('source')
+    assert 'Fail' in ubman.run_command('source \\# || echo Fail')
 
-    cons.run_command('fdt rm /images default')
-    assert 'Fail' in cons.run_command('source || echo Fail')
-    assert 'Fail' in cons.run_command('source \\# || echo Fail')
+    ubman.run_command('fdt rm /images default')
+    assert 'Fail' in ubman.run_command('source || echo Fail')
+    assert 'Fail' in ubman.run_command('source \\# || echo Fail')