Define a generic class to parse structured message.

Bug: 163492391
Test: atest android.net.util.StructTest --rerun-until-failure
Change-Id: I1848984d80998d87acccc52287a351d27708dedc
diff --git a/staticlibs/Android.bp b/staticlibs/Android.bp
index f4799f0..17372dc 100644
--- a/staticlibs/Android.bp
+++ b/staticlibs/Android.bp
@@ -48,7 +48,7 @@
         "//frameworks/opt/net/ike",
         "//frameworks/opt/net/wifi/service",
         "//frameworks/opt/net/telephony",
-        "//packages/modules/NetworkStack",
+        "//packages/modules/NetworkStack:__subpackages__",
         "//packages/modules/CaptivePortalLogin",
         "//frameworks/libs/net/common/tests:__subpackages__",
   ],