pre-upload.py: also check .rules files

BUG=none
TEST=add a blocked keyword to
     src/platform/inputcontrol/99-inputcontrol.rules and check the
     presubmit fails

Change-Id: I984e73cdf6101ccb9bed96b04afd90bee4c44098
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/repohooks/+/2575561
Tested-by: Harry Cutts <hcutts@chromium.org>
Auto-Submit: Harry Cutts <hcutts@chromium.org>
Reviewed-by: Bernie Thompson <bhthompson@chromium.org>
Reviewed-by: Chris McDonald <cjmcdonald@chromium.org>
Commit-Queue: Chris McDonald <cjmcdonald@chromium.org>
diff --git a/pre-upload.py b/pre-upload.py
index 8f03fa1..5e52681 100755
--- a/pre-upload.py
+++ b/pre-upload.py
@@ -75,7 +75,7 @@
     r'(^|.*[\\\/])[^.]+$',
     # Other
     r'.*\.java$', r'.*\.mk$', r'.*\.am$',
-    r'.*\.policy$', r'.*\.conf$', r'.*\.go$',
+    r'.*\.policy$', r'.*\.rules$', r'.*\.conf$', r'.*\.go$',
     r'(^OWNERS|/OWNERS)',
 ]