Messaging: Rename androidx.appcompat.mms

* Someone apparently decided to "Replace-In-Files" these before, but
  they are not correct according to the folder structure
* Since it is just annoying to read the code in AS when it does not
  match the folder, change the package name back

Change-Id: Iea5c51aeb9e1f5b650a1009348065c7c38cddbeb

src/android/support/v7/mms/MmsXmlResourceParser.java

@@ -1,5 +1,6 @@
 /*
  * Copyright (C) 2015 The Android Open Source Project
+ * Copyright (C) 2024 The LineageOS Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -14,7 +15,7 @@
  * limitations under the License.
  */
 
-package androidx.appcompat.mms;
+package android.support.v7.mms;
 
 import android.util.Log;