Mark safety_center_service as app_api_service in SELinux Policy.

This is to make the SafetyCenterManager usable in CTS tests.
Test: SafetyCenterManager CTS test in ag/16284943
Bug: 203098016

Change-Id: I28a42da32f1f7f93c45294c7e984e6d1fd2cdd8d
1 file changed