Add mDL oem hal sepolicy for Pixel phone.

Bug: 161766687
Test: build success
Change-Id: I7832422481523aacffe8b8b272f0044be9a9dde9
diff --git a/citadel/file_contexts b/citadel/file_contexts
index d749e46..fd80454 100644
--- a/citadel/file_contexts
+++ b/citadel/file_contexts
@@ -4,6 +4,7 @@
 /vendor/bin/hw/android\.hardware\.keymaster@4\.1-service\.citadel  u:object_r:hal_keymaster_citadel_exec:s0
 /vendor/bin/hw/android\.hardware\.rebootescrow-service\.citadel    u:object_r:hal_rebootescrow_citadel_exec:s0
 /vendor/bin/hw/android\.hardware\.weaver@1\.0-service\.citadel     u:object_r:hal_weaver_citadel_exec:s0
+/vendor/bin/hw/android\.hardware\.identity@1\.0-service\.citadel   u:object_r:hal_identity_citadel_exec:s0
 /vendor/bin/hw/citadel_updater                                     u:object_r:citadel_updater_exec:s0
 /vendor/bin/hw/citadeld                                            u:object_r:citadeld_exec:s0
 /vendor/bin/hw/init_citadel                                        u:object_r:init_citadel_exec:s0