Change "Long pressing work mode in quick settings" to managed profile settings

Test: Long pressing work mode can go to managed profile settings now.

Bug: 34189626
Change-Id: I84820b1ce0a5693f36236c1bb512c99db3c6e9df

src/com/android/settings/accounts/ManagedProfileSettings.java

@@ -31,6 +31,7 @@ import android.util.Log;
 import com.android.internal.logging.nano.MetricsProto;
 import com.android.settings.R;
 import com.android.settings.SettingsPreferenceFragment;
+import com.android.settings.Utils;
 import com.android.settingslib.RestrictedLockUtils;
 import com.android.settingslib.RestrictedSwitchPreference;
 
@@ -97,7 +98,8 @@ public class ManagedProfileSettings extends SettingsPreferenceFragment
                 }
             }
         }
-        return null;
+        // Return default managed profile for the current user.
+        return Utils.getManagedProfile(mUserManager);
     }
 
     private void loadDataAndPopulateUi() {