Make legacy storage appop unsticky on upgrade to R

Newly installed apps that target R are not in legacy storage.
However an app that upgrades from a version that has legacy storage
currently keeps the legacy access. Make it unsticky
if new version targets R.

BUG: 148944140
Test: atest RestrictedPermissionsTest
Test: atest RestrictedStoragePermissionSharedUidTest
Change-Id: If1fb226492bbaa747ed13908e49144c3a4aa4093