Add TetheringCommonTests to CtsTetheringTest

Bug: 153614365
Bug: 153613717
Test: atest CtsTetheringTest
Change-Id: I26c06d522ef2935deb2b1abbd3c5b6be97a48a27
diff --git a/tests/cts/tethering/Android.bp b/tests/cts/tethering/Android.bp
index 63de301..37894ec 100644
--- a/tests/cts/tethering/Android.bp
+++ b/tests/cts/tethering/Android.bp
@@ -25,6 +25,7 @@
     ],
 
     static_libs: [
+        "TetheringCommonTests",
         "TetheringIntegrationTestsLib",
         "compatibility-device-util-axt",
         "ctstestrunner-axt",