JobSchedulerService - call PermissionEnforcer helper on methods annotated with @EnforcePermission

All java methods annotated with @EnforcePermission
must call super.<methodName>_enforcePermission
method provided by PermissionEnforcer.

This required by the @EnforcePermission annotation,
and enforced by a lint check.

This lint check does not yet run globally, causing
this to be missed. That problem is being addressed
imminently.

Bug: 236558918
Test: TH
Change-Id: Ie3ac9d33644f69e81d0570caf09036817f0d0d39