rename CFG_ macros to CONFIG_SYS

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/board/linkstation/linkstation.c b/board/linkstation/linkstation.c
index afb96ae..c0d43eb 100644
--- a/board/linkstation/linkstation.c
+++ b/board/linkstation/linkstation.c
@@ -53,7 +53,7 @@
 
 phys_size_t initdram (int board_type)
 {
-	return (get_ram_size(CFG_SDRAM_BASE, CFG_MAX_RAM_SIZE));
+	return (get_ram_size(CONFIG_SYS_SDRAM_BASE, CONFIG_SYS_MAX_RAM_SIZE));
 }
 
 /*