scsi: lpfc: Update congestion warning notification period

The CMF_SYNC_WQE command is updated to use an 8-bit field sync period.  All
related variables used to calculate congestion warning notifications are
updated to 8-bit fields accordingly.

Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20230417191558.83100-5-justintee8345@gmail.com


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