Updater: Move PreferenceManager to AndroidX

Change-Id: I18c1c64652036359adcb47a34a2e565223f59e53

src/org/lineageos/updater/UpdatesCheckReceiver.java

@@ -24,10 +24,10 @@ import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.os.SystemClock;
-import android.preference.PreferenceManager;
 import android.util.Log;
 
 import androidx.core.app.NotificationCompat;
+import androidx.preference.PreferenceManager;
 
 import org.json.JSONException;
 import org.lineageos.updater.download.DownloadClient;

src/org/lineageos/updater/UpdatesListAdapter.java

@@ -23,7 +23,6 @@ import android.content.res.Resources;
 import android.net.Uri;
 import android.os.BatteryManager;
 import android.os.PowerManager;
-import android.preference.PreferenceManager;
 import android.text.SpannableString;
 import android.text.format.Formatter;
 import android.text.method.LinkMovementMethod;
@@ -49,6 +48,7 @@ import androidx.appcompat.view.ContextThemeWrapper;
 import androidx.appcompat.view.menu.MenuBuilder;
 import androidx.appcompat.view.menu.MenuPopupHelper;
 import androidx.appcompat.widget.PopupMenu;
+import androidx.preference.PreferenceManager;
 import androidx.recyclerview.widget.RecyclerView;
 
 import com.google.android.material.snackbar.Snackbar;

src/org/lineageos/updater/misc/Utils.java

@@ -26,10 +26,11 @@ import android.net.ConnectivityManager;
 import android.net.NetworkInfo;
 import android.os.SystemProperties;
 import android.os.storage.StorageManager;
-import android.preference.PreferenceManager;
 import android.util.Log;
 import android.widget.Toast;
 
+import androidx.preference.PreferenceManager;
+
 import org.json.JSONArray;
 import org.json.JSONException;
 import org.json.JSONObject;