debian: init: make sure ssh is restarted with the new keys

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
setup_sdcard.sh: --beagleboard.org-production needs the fat partition

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
setup_sdcard: make sure these three tools are installed no matter what

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>