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/mt7621.h b/include/configs/mt7621.h
index 1211bb4..7c8c67f 100644
--- a/include/configs/mt7621.h
+++ b/include/configs/mt7621.h
@@ -13,7 +13,7 @@
 #define CONFIG_VERY_BIG_RAM
 #define CONFIG_MAX_MEM_MAPPED		0x1c000000
 
-#define CONFIG_SYS_INIT_SP_OFFSET	0x800000
+#define CFG_SYS_INIT_SP_OFFSET	0x800000
 
 /* MMC */
 #define MMC_SUPPORTS_TUNING
@@ -27,10 +27,10 @@
 #endif
 
 /* Serial common */
-#define CONFIG_SYS_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200, \
+#define CFG_SYS_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200, \
 					  230400, 460800, 921600 }
 
 /* Dummy value */
-#define CONFIG_SYS_UBOOT_BASE		0
+#define CFG_SYS_UBOOT_BASE		0
 
 #endif /* __CONFIG_MT7621_H */