[SettingsProvider] fix potential MemoryIntArray leakage

Although it should not happen, for completeness, patch the code up in
case the MemoryIntArray that is sent to the client over Parcel is not closed properly.

BUG: 277448672
Test: presubmit

Change-Id: Ia712f9a9d7ffa0f531265bd7351358da5f582551