Add binary input support for function sim_kelvin

kelvin_sim ISS supports both ELF and bin inputs in
https://spacebeaker.googlesource.com/shodan/sim/kelvin/+/0dc5a8526bc5445aae704f10e76ab3bc0ada94cd

Update the helper bash function to handle the file format properly. Split out
`sim_kelvin_renode` for the Renode wrapper (to be updated to support the
vector ops)

Change-Id: Idd5c8353b4d9b943e42aced3d80d2b4a76c46ccb
2 files changed