main: Convert htm commands to path based targeting
main: Convert htm commands to path based targeting

If none of the expected targets are selected, log an error.

  core htm - core target
  nest htm - pib target

Signed-off-by: Amitay Isaacs <a505e7c038746dbeb3edcd8d146dbd515432801f@ozlabs.org>

open-power/pdbg,open-power/pdbg,open-power/pdbg