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

This reverts commit 5d3a21df6694ebd66d5c34c9d62a26edc7456fc7, reversing
changes made to 56d37f1c564107e27d873181d838571b7d7860e7.

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

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/tools/patman/series.py b/tools/patman/series.py
index 9f885c8..b7eef37 100644
--- a/tools/patman/series.py
+++ b/tools/patman/series.py
@@ -244,7 +244,7 @@
             add_maintainers: Either:
                 True/False to call the get_maintainers to CC maintainers
                 List of maintainers to include (for testing)
-            limit: Limit the length of the Cc list (None if no limit)
+            limit: Limit the length of the Cc list
         Return:
             Filename of temp file created
         """