scsi: lpfc: Simplify error handling for failed lpfc_get_sli4_parameters cmd

There are unnecessary checks on an HBA's interface type and family before
erroring out a failed lpfc_get_sli4_parameters mailbox command.  Simplify
the error handling by logging a message and proceeding to memory free
labels.

Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20250618192138.124116-7-justintee8345@gmail.com


Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>