hsm: Rename _BCInitiatorNameResolve function

Function _BCInitiatorNameResolve actually resolves the iface name not
the initiator name so new name emphasizes that.

Change-Id: I716317afdba3321c9d6bf0e382f261b3b22802f7
Bug-Url: https://bugzilla.redhat.com/1078137
Signed-off-by: Sergey Gotliv <sgotliv@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/25701
Reviewed-by: Nir Soffer <nsoffer@redhat.com>
Reviewed-by: Allon Mureinik <amureini@redhat.com>
Reviewed-by: Federico Simoncelli <fsimonce@redhat.com>
Reviewed-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Reviewed-on: http://gerrit.ovirt.org/26657