Compile android-non-updatable with framework-tethering module-lib stub

To resolve framework-tethering's module-lib for android-non-updatable
API, compile android-non-updatable with
sdk_module-lib_current_framework-tethering.

Bug: 205658040
Test: make update-api && make

Change-Id: Ib4bd0312f6c621ba19552a2608e47f9158b0fe25
diff --git a/StubLibraries.bp b/StubLibraries.bp
index 44c55c2..d090296 100644
--- a/StubLibraries.bp
+++ b/StubLibraries.bp
@@ -318,6 +318,7 @@
     defaults: ["android-non-updatable_defaults_stubs_current"],
     srcs: [":module-lib-api-stubs-docs-non-updatable"],
     libs: [
+        "sdk_module-lib_current_framework-tethering",
         "sdk_system_current_android",
         // NOTE: The below can be removed once the prebuilt stub contains IKE.
         "sdk_system_current_android.net.ipsec.ike",