patman: Convert camel case in terminal.py

Convert this file to snake case and update all files which use it.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/tools/patman/main.py b/tools/patman/main.py
index d32eae4..2a2ac45 100755
--- a/tools/patman/main.py
+++ b/tools/patman/main.py
@@ -177,7 +177,7 @@
                                  args.dest_branch, args.force,
                                  args.show_comments, args.patchwork_url)
     except Exception as e:
-        terminal.Tprint('patman: %s: %s' % (type(e).__name__, e),
+        terminal.tprint('patman: %s: %s' % (type(e).__name__, e),
                        colour=terminal.Color.RED)
         if args.debug:
             print()