Add API level check at the callsite of PermissionDecisionStorageImpl

The API level mismatch error is identified in the presubmit linting of ag/24994226. Since that CL is purely for code reformat,
separate the fix into its own CL.

Bug: 24994226
Test: Existing tests pass
Change-Id: Ia4f914fde9316716219230e654c93945e7873114