Only modify network settings on system user

Captive portal, wi-fi and mobile data should not be modified for secondary users without user intervention

Issue: calyxos#1025
Change-Id: Ic24d18268d05b5a1535b3993bdd0a614055847f6

src/org/lineageos/setupwizard/SetupWizardExitActivity.java

@@ -40,7 +40,9 @@ public class SetupWizardExitActivity extends BaseSetupWizardActivity {
         if (LOGV) {
             Log.v(TAG, "onCreate savedInstanceState=" + savedInstanceState);
         }
-        SetupWizardUtils.enableCaptivePortalDetection(this);
+        if (SetupWizardUtils.isOwner()) {
+            SetupWizardUtils.enableCaptivePortalDetection(this);
+        }
         PhoneMonitor.onSetupFinished();
         if (!getSystemService(UserManager.class).isManagedProfile()) {
             launchHome();