Add framework-connectivity to tethering tests

This is necessary for tethering tests to build against hidden
framework-connectivity APIs after it is moved out of
framework-minus-apex.

Bug: 179229316
Test: atest TetheringTests
Ignore-AOSP-First: Need manual cherry-picks
Change-Id: I912fcd19bacb75a5944409b07d8e014032657d4a

Tethering/tests/unit/Android.bp

@@ -33,6 +33,7 @@ java_library {
     sdk_version: "core_platform",
     libs: [
         "framework-minus-apex",
+        "framework-connectivity.stubs.module_lib",
         "framework-tethering.impl",
     ],
     visibility: [
@@ -66,6 +67,7 @@ java_defaults {
         "ext",
         "framework-minus-apex",
         "framework-res",
+        "framework-connectivity.impl",
         "framework-tethering.impl",
         "framework-wifi.stubs.module_lib",
     ],