Check dir path before updating permissions. am: 0c3e2ce281

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/providers/TelephonyProvider/+/19734279

Change-Id: If342fba455315502a8b0be776102a9eade6864b3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>