Fix references to resources for Settings

Bug: 293810334
Test: m Settings
Change-Id: Ie140278f492ef7e1c062ec1ecae2866c521a86aa

src/com/android/settings/vpn2/VpnSettings.java

@@ -196,7 +196,8 @@ public class VpnSettings extends RestrictedDashboardFragment implements
         if (mUnavailable) {
             // Show a message to explain that VPN settings have been disabled
             if (!isUiRestrictedByOnlyAdmin()) {
-                getEmptyTextView().setText(R.string.vpn_settings_not_available);
+                getEmptyTextView()
+                        .setText(com.android.settingslib.R.string.vpn_settings_not_available);
             }
             getPreferenceScreen().removeAll();
             return;