RPC compatibility with older versions of Adaptive Server

[Bug #239685] Adaptive Server version 12.5 fails when executing a server-to-server remote procedure call (RPC) against an earlier version of Adaptive Server if the remote server predates a fix made under CR #210796.

Workaround: To execute an RPC successfully from a version 12.5 Adaptive Server, your remote Adaptive Server must be one of the following: