Adding rust lib for random parcel

Adding a wrapper over libbinder_random_parcel to be used
by rust fuzzers.

Bug: 164122727
Test: m libbinder_random_parcel_rs
Change-Id: I5acd139ce2b219f44f92e089951bb92613f85917
diff --git a/libs/binder/rust/src/lib.rs b/libs/binder/rust/src/lib.rs
index 195d9ac..a0e61d9 100644
--- a/libs/binder/rust/src/lib.rs
+++ b/libs/binder/rust/src/lib.rs
@@ -148,4 +148,5 @@
     pub use crate::binder::AsNative;
     pub use crate::proxy::unstable_api::new_spibinder;
     pub use crate::sys::AIBinder;
+    pub use crate::sys::AParcel;
 }