fog: Wait 10 minutes for machine to be reachable after deploy
A lot's going on in rc.local after a machine is provisioned with FOG. 5
minutes is a little aggressive when taking into account the time it
takes for:
- The machine to reboot after the FOG task completes
- BIOS to load
- DHCP/PXE/TFTP to timeout (double this if NIC order isn't correct)
- OS to boot and rc.local to do its magic
Signed-off-by: David Galloway <dgallowa@redhat.com>