scsi: lpfc: Update class of service bit field to 3 bits for WQE submissions

scsi: lpfc: Update class of service bit field to 3 bits for WQE submissions

WQE submissions only require a 3 bit field when specifying the class of
service to use.  So, update WQE submission paths to use a 3 bit field
instead of 0x0f as the bit mask.  A NLP_FCP_CLASS_MASK bitmask is
defined to ensure only a 3 bit mask is used.

Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://patch.msgid.link/20260212213008.149873-11-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>