Add parser support for YANG actions

Change-Id: I9e96ae15cee3f990dfa5ec3fac433faf71348e11
diff --git a/src/interpreter.hpp b/src/interpreter.hpp
index 0807c02..54a8d05 100644
--- a/src/interpreter.hpp
+++ b/src/interpreter.hpp
@@ -29,7 +29,7 @@
     void operator()(const copy_& copy) const;
     void operator()(const move_& move) const;
     void operator()(const dump_& dump) const;
-    void operator()(const rpc_& rpc) const;
+    void operator()(const prepare_& prepare) const;
     void operator()(const exec_& exec) const;
     void operator()(const cancel_& cancel) const;