Fix visibility rules preventing migration.

BUG: 167962976
Test: Local build (vendor/google/build/build_mainline_modules.sh)
Change-Id: I560a2aa086be1be1084cace2a56fa703824a67be
diff --git a/Tethering/common/TetheringLib/Android.bp b/Tethering/common/TetheringLib/Android.bp
index bf643cd..02dfdfe 100644
--- a/Tethering/common/TetheringLib/Android.bp
+++ b/Tethering/common/TetheringLib/Android.bp
@@ -16,7 +16,9 @@
 java_sdk_library {
     name: "framework-tethering",
     defaults: ["framework-module-defaults"],
-    impl_library_visibility: ["//frameworks/base/packages/Tethering:__subpackages__"],
+    impl_library_visibility: [
+        "//packages/modules/Connectivity/Tethering:__subpackages__"
+    ],
 
     srcs: [":framework-tethering-srcs"],