rename CFG_ macros to CONFIG_SYS

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/drivers/net/ns7520_eth.c b/drivers/net/ns7520_eth.c
index e19c223..c28726e 100644
--- a/drivers/net/ns7520_eth.c
+++ b/drivers/net/ns7520_eth.c
@@ -86,8 +86,8 @@
 # define ASSERT(expr, func)
 #endif				/* DEBUG */
 
-#define NS7520_MII_NEG_DELAY		(5*CFG_HZ)	/* in s */
-#define TX_TIMEOUT			(5*CFG_HZ)	/* in s */
+#define NS7520_MII_NEG_DELAY		(5*CONFIG_SYS_HZ)	/* in s */
+#define TX_TIMEOUT			(5*CONFIG_SYS_HZ)	/* in s */
 #define RX_STALL_WORKAROUND_CNT 100
 
 static int ns7520_eth_reset(void);