global: Move remaining CONFIG_SYS_* to CFG_SYS_*

The rest of the unmigrated CONFIG symbols in the CONFIG_SYS namespace do
not easily transition to Kconfig. In many cases they likely should come
from the device tree instead. Move these out of CONFIG namespace and in
to CFG namespace.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/include/configs/stm32f469-discovery.h b/include/configs/stm32f469-discovery.h
index 55e70ce..573a6b1 100644
--- a/include/configs/stm32f469-discovery.h
+++ b/include/configs/stm32f469-discovery.h
@@ -10,15 +10,15 @@
 #include <linux/sizes.h>
 
 /* For booting Linux, use the first 12MB of memory */
-#define CONFIG_SYS_BOOTMAPSZ		SZ_8M + SZ_4M
+#define CFG_SYS_BOOTMAPSZ		SZ_8M + SZ_4M
 
-#define CONFIG_SYS_FLASH_BASE		0x08000000
+#define CFG_SYS_FLASH_BASE		0x08000000
 
 /*
  * Configuration of the external SDRAM memory
  */
 
-#define CONFIG_SYS_HZ_CLOCK		1000000	/* Timer is clocked at 1MHz */
+#define CFG_SYS_HZ_CLOCK		1000000	/* Timer is clocked at 1MHz */
 
 #define BOOT_TARGET_DEVICES(func) \
 	func(MMC, mmc, 0)