PRESUBMIT lint: ignore long lines in SELinux policy files

Some policy files have long lines so the presubmit lint should ignore
them.

BUG=None
TEST=None

Change-Id: Ia53543be88bd39035c6d2a8413b981ce6b146c77
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform2/+/2341279
Tested-by: Yoshiki Iguchi <yoshiki@chromium.org>
Auto-Submit: Yoshiki Iguchi <yoshiki@chromium.org>
Commit-Queue: Jorge Lucangeli Obes <jorgelo@chromium.org>
Reviewed-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
diff --git a/PRESUBMIT.cfg b/PRESUBMIT.cfg
index 67c9d9c..eef3998 100644
--- a/PRESUBMIT.cfg
+++ b/PRESUBMIT.cfg
@@ -74,7 +74,7 @@
   --exclude_regex=/testdata/
 
 long_line_check:
-  --exclude_regex=/testdata/
+  --exclude_regex=(/testdata/|^sepolicy/policy/|^sepolicy/shared/)
 
 cargo_clippy_check:
   --project=arc/vm/libvda/rust/