Bootrom: Add dbgflush to halt_and_catch_fire
Bootrom: Add dbgflush to halt_and_catch_fire

Toshiba found that they weren't seeing debug messages for e-Fuse failures.
This was most likely due to HCF halting before the debug message was flushed
out. Added a dbgflush() after HCF's last debug message to ensure that
the farewell message escapes.

Testing Done: inspection only - all functions previously tested
Bug Number: trivial
Review URL:
Reviewed by: Eli Sennesh, Olin Sibert

Signed-off-by:  Morgan Girling <980e61e2e2b82c453db57c2e8646c01fbd3318cd@bsquare.com>

projectara/bootrom,gregkh/bootrom