core: Making sshPort field to be editable always

sshPort field was set to be editable only when vds is UP, but should be
editable in any state. When perform 'edit host' we can change the port
number, this can be done from any state.

Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=989493
Change-Id: I2c5b6a74450f8766fb13d21eea2402f41d431ffa
Signed-off-by: Yaniv Bronhaim <ybronhei@redhat.com>