Reland "Move coredomain seapp contexts to system_ext" am: e10dde6f74

Original change: https://android-review.googlesource.com/c/device/google/redbull-sepolicy/+/2678575

Change-Id: Ibdb399d5611d5c8290dec52248522c377b2c107d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>