rename CFG_ macros to CONFIG_SYS

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/board/amcc/sequoia/sdram.c b/board/amcc/sequoia/sdram.c
index 77e6c7b..64eb063 100644
--- a/board/amcc/sequoia/sdram.c
+++ b/board/amcc/sequoia/sdram.c
@@ -113,5 +113,5 @@
 	 */
 	set_mcsr(get_mcsr());
 
-	return (CFG_MBYTES_SDRAM << 20);
+	return (CONFIG_SYS_MBYTES_SDRAM << 20);
 }