Since commit 663e0890 ("[SCSI] zfcp: remove access control tables
interface") these helper functions are only used for auto port scan in
zfcp_fc.c. Also change them to the corresponding namespace prefix.

This is a small cleanup for the miscellaneous catchall compile unit
zfcp_aux.c.
Signed-off-by: Steffen Maier <maier@linux.ibm.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>