Update DnsPacket package name

The package name needs to be updated as
the class is moved into com.android.net.module.util.

Bug: 149403767
Test: atest DnsResolverTest
(clean cherry-pick from internal branch)
Merged-In: I908cb5f7bc6150e461748c8e34c92a19aa0206e4
Change-Id: I908cb5f7bc6150e461748c8e34c92a19aa0206e4
diff --git a/tests/cts/net/src/android/net/cts/DnsResolverTest.java b/tests/cts/net/src/android/net/cts/DnsResolverTest.java
index 28753ff..e6f75c3 100644
--- a/tests/cts/net/src/android/net/cts/DnsResolverTest.java
+++ b/tests/cts/net/src/android/net/cts/DnsResolverTest.java
@@ -30,7 +30,6 @@
 import android.content.ContentResolver;
 import android.net.ConnectivityManager;
 import android.net.ConnectivityManager.NetworkCallback;
-import android.net.DnsPacket;
 import android.net.DnsResolver;
 import android.net.LinkProperties;
 import android.net.Network;
@@ -47,6 +46,8 @@
 import android.test.AndroidTestCase;
 import android.util.Log;
 
+import com.android.net.module.util.DnsPacket;
+
 import java.net.Inet4Address;
 import java.net.Inet6Address;
 import java.net.InetAddress;