scsi: lpfc: Revise CQ_CREATE_SET mailbox bitfield definitions

The CQ_CREATE_SET mailbox command's bitfields are updated.  Rename the
cqe_cnt and separate high/low bitfield names to help resolve confusion
between two similar bitfield definitions.  Corresponding usages of the
newly defined bitfields are updated as well.

Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20250618192138.124116-11-justintee8345@gmail.com


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