Add framework-connectivity-test-defaults

The defaults follow the same pattern as framework-wifi-test-defaults to
allow unit tests to build against hidden API in Connectivity.

(clean cherry-pick of history in downstream branch)

Bug: 171540887
Test: m
Merged-In: I3c2563d4ae4e3715d0c6270344ba8f7ef067872f
Change-Id: Ia8531f672820fcc8968f98494903e486c4e42652
diff --git a/tests/common/Android.bp b/tests/common/Android.bp
index dc66870..3a0f40b 100644
--- a/tests/common/Android.bp
+++ b/tests/common/Android.bp
@@ -23,7 +23,11 @@
 
 java_library {
     name: "FrameworksNetCommonTests",
-    srcs: ["java/**/*.java", "java/**/*.kt"],
+    defaults: ["framework-connectivity-test-defaults"],
+    srcs: [
+        "java/**/*.java",
+        "java/**/*.kt",
+    ],
     static_libs: [
         "androidx.core_core",
         "androidx.test.rules",