[SCSI] zfcp: Move qtcb kmem_cache to zfcp_fsf.c

Move the kmem_cache for allocating the qtcb to zfcp_fsf.c and rename
it accordingly.

Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h
index fa1834f..58c7e57 100644
--- a/drivers/s390/scsi/zfcp_ext.h
+++ b/drivers/s390/scsi/zfcp_ext.h
@@ -98,6 +98,7 @@
 extern int zfcp_fc_timeout_bsg_job(struct fc_bsg_job *);
 
 /* zfcp_fsf.c */
+extern struct kmem_cache *zfcp_fsf_qtcb_cache;
 extern int zfcp_fsf_open_port(struct zfcp_erp_action *);
 extern int zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *);
 extern int zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *);