scsi: lpfc: Correct CRC32 calculation for congestion stats

lpfc_cgn_calc_crc32() is returning 32 bits, and lpfc_cgn_update_stat() was
using u16 to store the crc32 value.  Correct by redeclaring the local
variable to u32.

Link: https://lore.kernel.org/r/20220412222008.126521-15-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>

drivers/scsi/lpfc/lpfc_init.c

@@ -5539,7 +5539,7 @@ lpfc_cgn_update_stat(struct lpfc_hba *phba, uint32_t dtag)
 	struct tm broken;
 	struct timespec64 cur_time;
 	u32 cnt;
-	u16 value;
+	u32 value;
 
 	/* Make sure we have a congestion info buffer */
 	if (!phba->cgn_i)