scsi: pm80xx: corrected linkrate value.

Corrected the value defined for LINKRATE_60 (6 Gig).
Signed-off-by: NRaj Dinesh <Raj.Dinesh@microsemi.com>
Signed-off-by: NViswas G <viswas.g@microsemi.com>
Acked-by: NJack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/pm8001/pm80xx_hwi.h

@@ -167,7 +167,7 @@
 #define LINKMODE_AUTO			(0x03 << 12)
 #define LINKRATE_15			(0x01 << 8)
 #define LINKRATE_30			(0x02 << 8)
-#define LINKRATE_60			(0x06 << 8)
+#define LINKRATE_60			(0x04 << 8)
 #define LINKRATE_120			(0x08 << 8)
 
 /* phy_profile */