95iscsi: update commandline printing

dracut has a separate callout 'cmdline' which should be used
for printing out the generated commandline.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Quieten output for missing binaries

dracut will check for binaries during the 'check' step.
So it's perfectly okay for the binaries to not be present,
and dracut shouldn't print any warning here.

References: bnc#880673

Signed-off-by: Hannes Reinecke <hare@suse.de>
95fcoe: Only install fcoe module if required

When called with '--hostonly' we need to check if
any FCoE controllers are present. Otherwise we don't
need to include the module.

Signed-off-by: Hannes Reinecke <hare@suse.de>