Refactor Shodan repl assignments

* Move the opentitan memory tags into secure.repl to align with the
  autogen result
* Adjust memory map in secure.repl to match the definition in
  top_matcha.hjson
* Move the smc memory tag into smc.repl

Change-Id: Ib0a38cadc054fbe733c6118add292406a0ce5ce1