Change tethering file structure to respect its package name

Bug: 145099347
Test: atest TetheringTests
      atest CtsTetheringTest
Change-Id: I7401c550fbafd17a5ed2d925b5d0e17e358af467
diff --git a/Tethering/AndroidManifest_InProcess.xml b/Tethering/AndroidManifest_InProcess.xml
index bf1f001..b1f1240 100644
--- a/Tethering/AndroidManifest_InProcess.xml
+++ b/Tethering/AndroidManifest_InProcess.xml
@@ -22,7 +22,7 @@
           android:process="system">
     <uses-sdk android:minSdkVersion="29" android:targetSdkVersion="29" />
     <application>
-        <service android:name="com.android.server.connectivity.tethering.TetheringService"
+        <service android:name="com.android.networkstack.tethering.TetheringService"
                  android:process="system"
                  android:permission="android.permission.MAINLINE_NETWORK_STACK"
                  android:exported="true">