Declare new Fonts service

Bug: 34190490
Test: see topic for CTS
Change-Id: Id2b849d7fa22989225066ebe487fc98d319743ea

private/service_contexts

@@ -47,6 +47,7 @@ dropbox                                   u:object_r:dropbox_service:s0
 dumpstate                                 u:object_r:dumpstate_service:s0
 ethernet                                  u:object_r:ethernet_service:s0
 fingerprint                               u:object_r:fingerprint_service:s0
+font                                      u:object_r:font_service:s0
 android.hardware.fingerprint.IFingerprintDaemon u:object_r:fingerprintd_service:s0
 gfxinfo                                   u:object_r:gfxinfo_service:s0
 graphicsstats                             u:object_r:graphicsstats_service:s0

public/service.te

@@ -61,6 +61,7 @@ type device_identifiers_service, app_api_service, system_server_service, service
 type devicestoragemonitor_service, system_server_service, service_manager_type;
 type diskstats_service, system_api_service, system_server_service, service_manager_type;
 type display_service, app_api_service, system_server_service, service_manager_type;
+type font_service, app_api_service, system_server_service, service_manager_type;
 type netd_listener_service, system_server_service, service_manager_type;
 type DockObserver_service, system_server_service, service_manager_type;
 type dreams_service, app_api_service, system_server_service, service_manager_type;