[SCSI] bfa: Add BSG interface to support ELS, CT and vendor commands.

- Added BSG interface support to BFA driver
- Adds support to send ELS/CT FC passthru commands and
  few vendor specific BSG requests.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

drivers/scsi/bfa/bfad_im.h

@@ -141,4 +141,7 @@ extern struct device_attribute *bfad_im_vport_attrs[];
 
 irqreturn_t bfad_intx(int irq, void *dev_id);
 
+int bfad_im_bsg_request(struct fc_bsg_job *job);
+int bfad_im_bsg_timeout(struct fc_bsg_job *job);
+
 #endif