RESTRICT AUTOMERGE Restrict Settings Homepage prior to provisioning

Bug: 327749022
Test: manual test
1. factory reset + launch Settings via ADB during Setup -> verify app closes
2. factory reset + bypass Setup + tap Settings icon in launcher -> verify app closes
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:70a5a0fd353cc6203d2926627de93786155ae5bc)
Merged-In: I8cbe38109ebf88a0f68f3917e95468a81c6463c1
Change-Id: I8cbe38109ebf88a0f68f3917e95468a81c6463c1

src/com/android/settings/homepage/SettingsHomepageActivity.java

@@ -74,6 +74,17 @@ public class SettingsHomepageActivity extends FragmentActivity implements
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+
+        // Ensure device is provisioned in order to access Settings home
+        // TODO(b/331254029): This should later be replaced in favor of an allowlist
+        boolean unprovisioned = android.provider.Settings.Global.getInt(getContentResolver(),
+                android.provider.Settings.Global.DEVICE_PROVISIONED, 0) == 0;
+        if (unprovisioned) {
+            Log.e(TAG, "Device is not provisioned, exiting Settings");
+            finish();
+            return;
+        }
+
         setContentView(R.layout.settings_homepage_container);
 
         final View appBar = findViewById(R.id.app_bar_container);