rename CFG_ macros to CONFIG_SYS

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/drivers/net/smc91111.c b/drivers/net/smc91111.c
index e8b235b..82abb02 100644
--- a/drivers/net/smc91111.c
+++ b/drivers/net/smc91111.c
@@ -383,7 +383,7 @@
 
 static int poll4int (byte mask, int timeout)
 {
-	int tmo = get_timer (0) + timeout * CFG_HZ;
+	int tmo = get_timer (0) + timeout * CONFIG_SYS_HZ;
 	int is_timeout = 0;
 	word old_bank = SMC_inw (BSR_REG);