Add debug support for sim_springbok
Add debug support for sim_springbok

"sim_springbok debug" will not start the emulation, making sure gdb can
capture the emulation before it starts.

Change-Id: I7a9273309248abdf2b410b90bd18c93cc597dfe7
GitOrigin-RevId: 50c2ef7afe2d054e2b752583fe8edaef04b3458c

AmbiML/sparrow-build