scsi: scsi_transport_fc: fix typos on 64/128 GBit define names

The define names specified 64Bit/128Bit, not 64GBIT/128GBIT.  Correct
the names.

Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

include/scsi/scsi_transport_fc.h

@@ -139,8 +139,8 @@ enum fc_vport_state {
 #define FC_PORTSPEED_50GBIT		0x200
 #define FC_PORTSPEED_100GBIT		0x400
 #define FC_PORTSPEED_25GBIT		0x800
-#define FC_PORTSPEED_64BIT		0x1000
-#define FC_PORTSPEED_128BIT		0x2000
+#define FC_PORTSPEED_64GBIT		0x1000
+#define FC_PORTSPEED_128GBIT		0x2000
 #define FC_PORTSPEED_NOT_NEGOTIATED	(1 << 15) /* Speed not established */
 
 /*