Merge "Add system_ext_userdebug_plat_sepolicy.cil for GSI" am: 55ff75d379 am: 0cf2f3312e am: 5786560e80 am: 9b850b026c

Original change: https://android-review.googlesource.com/c/platform/system/sepolicy/+/1824717

Change-Id: Iec88491fc79f4264b740604823f70c67c9ab59c9