Make framework-tethering stubs use the new defaults

Makes it convenient to change all stubs from a central place.

Bug: 149293194
Test: m framework-tethering-stubs{public,system,module_libs_}api
Change-Id: I330133824e78b3a8927e3d3ffbbd729bcdcb8822
diff --git a/Tethering/common/TetheringLib/Android.bp b/Tethering/common/TetheringLib/Android.bp
index 2fbba68..9aeffc0 100644
--- a/Tethering/common/TetheringLib/Android.bp
+++ b/Tethering/common/TetheringLib/Android.bp
@@ -125,17 +125,17 @@
 java_library {
     name: "framework-tethering-stubs-publicapi",
     srcs: [":framework-tethering-stubs-srcs-publicapi"],
-    sdk_version: "current",
+    defaults: ["framework-module-stubs-lib-defaults-publicapi"],
 }
 
 java_library {
     name: "framework-tethering-stubs-systemapi",
     srcs: [":framework-tethering-stubs-srcs-systemapi"],
-    sdk_version: "system_current",
+    defaults: ["framework-module-stubs-lib-defaults-systemapi"],
 }
 
 java_library {
     name: "framework-tethering-stubs-module_libs_api",
     srcs: [":framework-tethering-stubs-srcs-module_libs_api"],
-    sdk_version: "module_current",
+    defaults: ["framework-module-stubs-lib-defaults-systemapi"],
 }