Add Rust API for RPC binder.

Bug: 234019127
Bug: 184872979
Test: atest compos_key_tests MicrodroidHostTestCases MicrodroidTestApp libbinder_rs-internal_test
Change-Id: I3ff500a50616e16a645751af4fbd5ed03b93b379
diff --git a/libs/binder/Android.bp b/libs/binder/Android.bp
index fabf3eb..2cb6821 100644
--- a/libs/binder/Android.bp
+++ b/libs/binder/Android.bp
@@ -446,6 +446,7 @@
     // This library is intentionally limited to these targets, and it will be removed later.
     // Do not expand the visibility.
     visibility: [
+        ":__subpackages__",
         "//packages/modules/Virtualization:__subpackages__",
     ],
 }