fec: Fix KS8721BL_ICSR phy register offset

According to the datasheet the ICSR register is at offset 27, not 22.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/fec.c b/drivers/net/fec.c
index 46a441a..cab07ec 100644
--- a/drivers/net/fec.c
+++ b/drivers/net/fec.c
@@ -1111,7 +1111,7 @@
 /* register definitions for the 8721 */
 
 #define MII_KS8721BL_RXERCR	21
-#define MII_KS8721BL_ICSR	22
+#define MII_KS8721BL_ICSR	27
 #define	MII_KS8721BL_PHYCR	31
 
 static phy_cmd_t const phy_cmd_ks8721bl_config[] = {