Rename tethering jni and get the jni by its package name

tetherutiljni is renamed to com_android_networkstack_tethering_jni_util

Bug: 205088391
Test: atest TetheringTests
      atest CtsTetheringTest
      atest TetheringPrivilegedTests
Change-Id: Ifd1f4473625e33d3ebe190c9f8a2b5d54aa1ff49
diff --git a/Tethering/tests/unit/Android.bp b/Tethering/tests/unit/Android.bp
index 85169f9..228f3fd 100644
--- a/Tethering/tests/unit/Android.bp
+++ b/Tethering/tests/unit/Android.bp
@@ -75,7 +75,7 @@
         // For mockito extended
         "libdexmakerjvmtiagent",
         "libstaticjvmtiagent",
-        "libtetherutilsjni",
+        "libcom_android_networkstack_tethering_util_jni",
     ],
 }