Revert "Merge tag 'dm-pull-20jul20' of git://git.denx.de/u-boot-dm"

This reverts commit 5d3a21df66, reversing
changes made to 56d37f1c56.

Unfortunately this is causing CI failures:
https://travis-ci.org/github/trini/u-boot/jobs/711313649

Signed-off-by: Tom Rini <trini@konsulko.com>

tools/patman/settings.py

@@ -233,19 +233,17 @@ def _UpdateDefaults(parser, config):
         config: An instance of _ProjectConfigParser that we will query
             for settings.
     """
-    defaults = parser.parse_known_args()[0]
-    defaults = vars(defaults)
+    defaults = parser.get_default_values()
     for name, val in config.items('settings'):
-        if name in defaults:
-            default_val = defaults[name]
+        if hasattr(defaults, name):
+            default_val = getattr(defaults, name)
             if isinstance(default_val, bool):
                 val = config.getboolean('settings', name)
             elif isinstance(default_val, int):
                 val = config.getint('settings', name)
-            defaults[name] = val
+            parser.set_default(name, val)
         else:
             print("WARNING: Unknown setting %s" % name)
-        parser.set_defaults(**defaults)
 
 def _ReadAliasFile(fname):
     """Read in the U-Boot git alias file if it exists.