Fix refcount race, flush() races, callerPkg spoofing#280

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thomasbuilds wants to merge 3 commits into

GrapheneOS:16-qpr2from

thomasbuilds:fix

Commits on Jun 12, 2026

call PersistentFgService.requestStart() before linkToDeath()
thomasbuilds
committed
location service: fix flush() races with listener unregistration
thomasbuilds
committed
verify callerPkg in IGms2Gca methods that use it
thomasbuilds
committed