Don't show setting if private profile is locked

Bug: 311343261
Test: manual
Change-Id: I16e1f08c7cace0964e666a71e785fee1c18cc577

src/com/android/settings/privatespace/PrivateSpaceDashboardFragment.java

@@ -33,6 +33,14 @@ public class PrivateSpaceDashboardFragment extends DashboardFragment {
         }
     }
 
+    @Override
+    public void onStart() {
+        super.onStart();
+        if (PrivateSpaceMaintainer.getInstance(getContext()).isPrivateSpaceLocked()) {
+            finish();
+        }
+    }
+
     @Override
     protected int getPreferenceScreenResId() {
         return R.xml.private_space_settings;