Rename Wi-Fi switch controller's key

Leverage the key of WifiPrimarySwitchPreferenceController for Settings
Search mapping it to the slice

Bug: 186181785
Test: manual, robotest
Change-Id: I1372afff93f01505c377e94b648e6f8dcbbafe54
diff --git a/res/xml/network_provider_settings.xml b/res/xml/network_provider_settings.xml
index 3d4ce80..c6d2831 100644
--- a/res/xml/network_provider_settings.xml
+++ b/res/xml/network_provider_settings.xml
@@ -59,7 +59,7 @@
         android:layout="@layout/preference_category_no_label"/>
 
     <com.android.settingslib.RestrictedSwitchPreference
-        android:key="wifi_switch"
+        android:key="main_toggle_wifi"
         android:title="@string/wifi"
         android:summary="@string/wifi_switch_summary"
         settings:keywords="@string/keywords_wifi"/>
diff --git a/src/com/android/settings/network/WifiSwitchPreferenceController.java b/src/com/android/settings/network/WifiSwitchPreferenceController.java
index 2ee407a..38ad0eb 100644
--- a/src/com/android/settings/network/WifiSwitchPreferenceController.java
+++ b/src/com/android/settings/network/WifiSwitchPreferenceController.java
@@ -35,7 +35,7 @@
 public class WifiSwitchPreferenceController extends AbstractPreferenceController implements
         LifecycleObserver {
 
-    public static final String KEY = "wifi_switch";
+    public static final String KEY = "main_toggle_wifi";
 
     private RestrictedSwitchPreference mPreference;