webosvbox: Use port from VM in ssh command

Open-webOS-DCO-1.0-Signed-off-by: Keith Derrick <keith.derrick@palm.com>

Change-Id: I985185bf878f387f83171cd1e731ca9cfab655d4
Reviewed-on: http://g2g.palm.com/1471
Reviewed-by: Keith Derrick <keith.derrick@palm.com>
Tested-by: Keith Derrick <keith.derrick@palm.com>