qlcnic: fix ocm window register offset calculation

OCM window register offset was calculated incorrectly for
pci function greater than zero.

Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Author: Rajesh Borundia

drivers/net/qlcnic/qlcnic_hdr.h

@@ -621,7 +621,7 @@ enum {
 #define PCIX_INT_MASK		(0x10104)
 
 #define PCIX_OCM_WINDOW		(0x10800)
-#define PCIX_OCM_WINDOW_REG(func)	(PCIX_OCM_WINDOW + 0x20 * (func))
+#define PCIX_OCM_WINDOW_REG(func)	(PCIX_OCM_WINDOW + 0x4 * (func))
 
 #define PCIX_TARGET_STATUS	(0x10118)
 #define PCIX_TARGET_STATUS_F1	(0x10160)