global: Migrate CONFIG_IRAM_BASE to CFG

Perform a simple rename of CONFIG_IRAM_BASE to CFG_IRAM_BASE

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/include/configs/rk3399_common.h b/include/configs/rk3399_common.h
index 2278b62..95cb27c 100644
--- a/include/configs/rk3399_common.h
+++ b/include/configs/rk3399_common.h
@@ -8,7 +8,7 @@
 
 #include "rockchip-common.h"
 
-#define CONFIG_IRAM_BASE		0xff8c0000
+#define CFG_IRAM_BASE		0xff8c0000
 
 /* FAT sd card locations. */
 #define CFG_SYS_SDRAM_BASE		0