Update Kelvin debug doc with the sim_kelvin .bin file support

Match the support in https://spacebeaker.googlesource.com/shodan/sim/kelvin/+/0dc5a8526bc5445aae704f10e76ab3bc0ada94cd

Change-Id: Ia8507e86bb5b6f48ad4041a0a4c64c0d927377c9
1 file changed