Add keystore2 namespace for LocksettingsService.

Bug: 184664830
Test: N/A
Change-Id: Ie04186eddaae689b968690b2bb0d3692c81ac645
diff --git a/private/system_server.te b/private/system_server.te
index 084ea22..1bab3e7 100644
--- a/private/system_server.te
+++ b/private/system_server.te
@@ -905,6 +905,16 @@
 	use
 };
 
+# Allow lock_settings service to manage locksettings keys (e.g. the synthetic password key).
+allow system_server locksettings_key:keystore2_key {
+	delete
+	get_info
+	rebind
+	update
+	use
+};
+
+
 # Allow system server to search and write to the persistent factory reset
 # protection partition. This block device does not get wiped in a factory reset.
 allow system_server block_device:dir search;