ctrl: Reduce code duplication and add a define to create the struct

This has been pointed out by Jacob and removes two more duplicates
of the struct. For the unused CTRL_CMD_DEFINE_STRING macro there
will be no verify command.
1 file changed
tree: 0bbc477f0c59afcf8c33e336b65d6d210481c614
  1. debian/
  2. hlrsync/
  3. linux-kernel/
  4. openbsc/
  5. wireshark/
  6. README