patman: Look for checkpatch in the scripts directory

The Linux kernel stores checkpatch.pl in the scripts directory.  Add
that to the search path to make things more automatic for kernel
development.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>

tools/patman/checkpatch.py

@@ -26,10 +26,12 @@ import re
 import terminal
 
 def FindCheckPatch():
+    top_level = gitutil.GetTopLevel()
     try_list = [
         os.getcwd(),
         os.path.join(os.getcwd(), '..', '..'),
-        os.path.join(gitutil.GetTopLevel(), 'tools'),
+        os.path.join(top_level, 'tools'),
+        os.path.join(top_level, 'scripts'),
         '%s/bin' % os.getenv('HOME'),
         ]
     # Look in current dir