UI: add indication the VMInit root password is set

Since we are not returning the password on edit VM, we need to let the
user know that the password is set.

Bug-Url: https://bugzilla.redhat.com/1051041
Change-Id: Iedfea8520e885c948772dd0d1b612296aeced895
Signed-off-by: Shahar Havivi <shaharh@redhat.com>