We attempt to use iscsi-iname in an exec for our nova compute profile
but we do not ensure that the package providing this command is
installed. This change adds the package definition for
iscsi-initiator-utils to ensure it is installed before trying to use
iscsi-iname.
Change-Id: I1bfdb68170931fd05a09859cf8eefb50ed20915d
Closes-Bug: #1675462
(cherry picked from commit 2102a610c1)