Add SELinux policy for legacy permission service.

The updatable and non-updatable permission manager cannot share one
AIDL, so we need to create a new system service for the non-updatable
legacy one, and add the SELinux policy for it.

Bug: 158736025
Test: presubmit
Change-Id: Ief8da6335e5bfb17d915d707cf48f4a43332f6ae
diff --git a/private/permissioncontroller_app.te b/private/permissioncontroller_app.te
index 41185e3..44c1283 100644
--- a/private/permissioncontroller_app.te
+++ b/private/permissioncontroller_app.te
@@ -18,6 +18,9 @@
 # Allow interaction with activity_service
 allow permissioncontroller_app activity_service:service_manager find;
 
+# Allow interaction with legacy_permission_service
+allow permissioncontroller_app legacy_permission_service:service_manager find;
+
 allow permissioncontroller_app activity_task_service:service_manager find;
 allow permissioncontroller_app audio_service:service_manager find;
 allow permissioncontroller_app autofill_service:service_manager find;