Merge "Add system_ext_userdebug_plat_sepolicy.cil for GSI" am: 55ff75d379 am: 0cf2f3312e

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

Change-Id: I4f7adae097a3e1a595b6464fb640aa52be0f2c98