Create SELinux label for contexhub_service

SELinux label is created for contexthub_service system service.

ContextHub service manages all available context hubs and serves fulfil communication between apps
and underlying context hub hardware.

Change-Id: I8470fedd9c79a00012e1cdb9b548a1b632ba7de6

priv_app.te

@@ -33,6 +33,7 @@ allow priv_app app_api_service:service_manager find;
 allow priv_app system_api_service:service_manager find;
 allow priv_app persistent_data_block_service:service_manager find;
 allow priv_app recovery_service:service_manager find;
+allow priv_app contexthub_service:service_manager find;
 
 # Traverse into /mnt/media_rw for bypassing FUSE daemon
 # TODO: narrow this to just MediaProvider

service.te

@@ -34,6 +34,7 @@ type battery_service, system_server_service, service_manager_type;
 type bluetooth_manager_service, app_api_service, system_server_service, service_manager_type;
 type cameraproxy_service, system_server_service, service_manager_type;
 type clipboard_service, app_api_service, system_server_service, service_manager_type;
+type contexthub_service, system_server_service, service_manager_type;
 type IProxyService_service, system_api_service, system_server_service, service_manager_type;
 type commontime_management_service, system_server_service, service_manager_type;
 type connectivity_service, app_api_service, system_server_service, service_manager_type;

service_contexts

@@ -24,6 +24,7 @@ common_time.config                       u:object_r:mediaserver_service:s0
 connectivity                              u:object_r:connectivity_service:s0
 consumer_ir                               u:object_r:consumer_ir_service:s0
 content                                   u:object_r:content_service:s0
+contexthub_service                        u:object_r:contexthub_service:s0
 country_detector                          u:object_r:country_detector_service:s0
 cpuinfo                                   u:object_r:cpuinfo_service:s0
 dbinfo                                    u:object_r:dbinfo_service:s0