Don't depend on libbase result.h

Test: mma
Bug: 302723053
Change-Id: Iea797d6af825d58543ba899f6e712b27e48d859a
diff --git a/libs/binder/RpcTransportTls.cpp b/libs/binder/RpcTransportTls.cpp
index efb09e9..11e080f 100644
--- a/libs/binder/RpcTransportTls.cpp
+++ b/libs/binder/RpcTransportTls.cpp
@@ -29,6 +29,8 @@
 #include "RpcState.h"
 #include "Utils.h"
 
+#include <sstream>
+
 #define SHOULD_LOG_TLS_DETAIL false
 
 #if SHOULD_LOG_TLS_DETAIL