[bssl] Retrieve error code from BoringSSL

This cl retrieves the error code from BoringSSL when an operation
fails and returns it to the users.

Test: atest rialto_test
Bug: 302527194
Change-Id: I36da67c2ff9e7f45aea8db659d400c347d9705ca
diff --git a/libs/bssl/src/lib.rs b/libs/bssl/src/lib.rs
index 4b9ff59..8b38f5b 100644
--- a/libs/bssl/src/lib.rs
+++ b/libs/bssl/src/lib.rs
@@ -21,11 +21,13 @@
 mod cbb;
 mod digest;
 mod ec_key;
+mod err;
 mod hkdf;
 mod hmac;
 mod util;
 
-pub use bssl_avf_error::{ApiName, Error, Result};
+pub use bssl_avf_error::{ApiName, CipherError, Error, ReasonCode, Result};
+
 pub use cbb::CbbFixed;
 pub use digest::Digester;
 pub use ec_key::{EcKey, ZVec};