Merge framework-connectivity impl and stub targets

Instead of using api_only: true, use a single java_sdk_library to
generate both framework-connectivity stubs and
framework-connectivity.impl.

Bug: 183600168
Test: m
Change-Id: I76d7cf1ba31a3f38ae6b9facbf1b668860c8c165
diff --git a/Android.bp b/Android.bp
index 6a47db1..33b66b6 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1461,7 +1461,7 @@
     ],
     libs: [
         "framework-annotations-lib",
-        "framework-connectivity",
+        "framework-connectivity.stubs.module_lib",
         "unsupportedappusage",
     ],
     visibility: [