Refactor generate_enforce_rro

A few tweaks to make it easier to extend to generating RROs in
multiple partitions:
- deduce the module name inside generate_enforce_rro
- dedup rule definition
- tweak framework-res check to use source module name instead

Bug: 127758779
Test: verify noop on presubmit targets
Change-Id: I2f0d6270b21f5427c372c04a5c6e7fb712e72a9a

tools/generate-enforce-rro-android-manifest.py

@@ -48,8 +48,9 @@ def get_args():
 def main(argv):
   args = get_args()
 
-  package_name = args.package_info
-  if not args.use_package_name:
+  if args.use_package_name:
+    package_name = args.package_info
+  else:
     with open(args.package_info) as f:
       data = f.read()
       f.close()