Migrate Contacts to androidx.

Test: make Contacts
Bug: 76692459
Change-Id: I6f0bc94769af201a18f7fd06e4dac78d53bec763
diff --git a/src/com/android/contacts/ContactSaveService.java b/src/com/android/contacts/ContactSaveService.java
index 4e2d178..d0be7d8 100755
--- a/src/com/android/contacts/ContactSaveService.java
+++ b/src/com/android/contacts/ContactSaveService.java
@@ -47,7 +47,7 @@
 import android.provider.ContactsContract.Profile;
 import android.provider.ContactsContract.RawContacts;
 import android.provider.ContactsContract.RawContactsEntity;
-import android.support.v4.content.LocalBroadcastManager;
+import androidx.localbroadcastmanager.content.LocalBroadcastManager;
 import android.support.v4.os.ResultReceiver;
 import android.text.TextUtils;
 import android.util.Log;