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/com/android/messaging/datamodel/data/ParticipantData.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.
@@ -25,7 +26,7 @@ import android.os.Parcelable;
 import android.telephony.SubscriptionInfo;
 import android.text.TextUtils;
 
-import androidx.appcompat.mms.MmsManager;
+import android.support.v7.mms.MmsManager;
 import androidx.collection.ArrayMap;
 
 import com.android.ex.chips.RecipientEntry;