rename CFG_ macros to CONFIG_SYS

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/board/cobra5272/mii.c b/board/cobra5272/mii.c
index b30ba80..161c694 100644
--- a/board/cobra5272/mii.c
+++ b/board/cobra5272/mii.c
@@ -45,7 +45,7 @@
 	return 0;
 }
 
-#if defined(CFG_DISCOVER_PHY) || defined(CONFIG_CMD_MII)
+#if defined(CONFIG_SYS_DISCOVER_PHY) || defined(CONFIG_CMD_MII)
 #include <miiphy.h>
 
 /* Make MII read/write commands for the FEC. */
@@ -131,9 +131,9 @@
 
 	return (mii_reply & 0xffff);	/* data read from phy */
 }
-#endif				/* CFG_DISCOVER_PHY || CONFIG_CMD_MII */
+#endif				/* CONFIG_SYS_DISCOVER_PHY || CONFIG_CMD_MII */
 
-#if defined(CFG_DISCOVER_PHY)
+#if defined(CONFIG_SYS_DISCOVER_PHY)
 int mii_discover_phy(struct eth_device *dev)
 {
 #define MAX_PHY_PASSES 11
@@ -198,7 +198,7 @@
 
 	return phyaddr;
 }
-#endif				/* CFG_DISCOVER_PHY */
+#endif				/* CONFIG_SYS_DISCOVER_PHY */
 
 void mii_init(void) __attribute__((weak,alias("__mii_init")));