scsi: zfcp: wire previously driver-specific sysfs attributes also to fc_host

scsi: zfcp: wire previously driver-specific sysfs attributes also to fc_host

Manufacturer, HBA model, firmware version, and hardware version.  Use the
same value format as for the driver-specific attributes.  Keep the
driver-specific attributes for stable user space sysfs API.

Link: https://lore.kernel.org/r/20200312174505.51294-4-maier@linux.ibm.com
Reviewed-by: Jens Remus <jremus@linux.ibm.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>