Rename vpnprofilestore to legacykeystore.

Ignore-AOSP-First: No mergepath from AOSP.
Bug: 191373871
Test: N/A
Change-Id: I3f11827909bd37a2127069de82670776a8e192b3
diff --git a/private/service_contexts b/private/service_contexts
index 3e6e2b4..3fd342b 100644
--- a/private/service_contexts
+++ b/private/service_contexts
@@ -37,10 +37,10 @@
 android.security.compat                   u:object_r:keystore_compat_hal_service:s0
 android.security.identity                 u:object_r:credstore_service:s0
 android.security.keystore                 u:object_r:keystore_service:s0
+android.security.legacykeystore           u:object_r:legacykeystore_service:s0
 android.security.maintenance              u:object_r:keystore_maintenance_service:s0
 android.security.metrics                  u:object_r:keystore_metrics_service:s0
 android.security.remoteprovisioning       u:object_r:remoteprovisioning_service:s0
-android.security.vpnprofilestore          u:object_r:vpnprofilestore_service:s0
 android.service.gatekeeper.IGateKeeperService    u:object_r:gatekeeper_service:s0
 app_binding                               u:object_r:app_binding_service:s0
 app_hibernation                           u:object_r:app_hibernation_service:s0