Add sepolicy for security_state service.

security_state service manages security state (e.g. SPL) information across partitions, modules, etc.

Bug: 307819014
Test: Manual
Change-Id: I4ebcd8431c11b41f7e210947b32cf64c2adf3901
diff --git a/private/service_contexts b/private/service_contexts
index a1fb06b..758cab6 100644
--- a/private/service_contexts
+++ b/private/service_contexts
@@ -368,6 +368,7 @@
 search_ui                                 u:object_r:search_ui_service:s0
 secure_element                            u:object_r:secure_element_service:s0
 sec_key_att_app_id_provider               u:object_r:sec_key_att_app_id_provider_service:s0
+security_state                            u:object_r:security_state_service:s0
 selection_toolbar                         u:object_r:selection_toolbar_service:s0
 sensorservice                             u:object_r:sensorservice_service:s0
 sensor_privacy                            u:object_r:sensor_privacy_service:s0