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/Android.bp b/Tethering/Android.bp
index 06a1f11..b1d9b97 100644
--- a/Tethering/Android.bp
+++ b/Tethering/Android.bp
@@ -84,7 +84,7 @@
 
 // Due to b/143733063, APK can't access a jni lib that is in APEX (but not in the APK).
 cc_library {
-    name: "libtetherutilsjni",
+    name: "libcom_android_networkstack_tethering_util_jni",
     sdk_version: "30",
     apex_available: [
         "//apex_available:platform", // Used by InProcessTethering
@@ -133,7 +133,7 @@
     name: "TetheringAppDefaults",
     privileged: true,
     jni_libs: [
-        "libtetherutilsjni",
+        "libcom_android_networkstack_tethering_util_jni",
     ],
     resource_dirs: [
         "res",