scsi: lpfc: Fix possible memory leak when failing to issue CMF WQE

There is no corresponding free routine if lpfc_sli4_issue_wqe fails to
issue the CMF WQE in lpfc_issue_cmf_sync_wqe.

If ret_val is non-zero, then free the iocbq request structure.

Link: https://lore.kernel.org/r/20220701211425.2708-6-jsmart2021@gmail.com


Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>