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/j721s2_evm.h b/include/configs/j721s2_evm.h
index e690ef9..ab204c6 100644
--- a/include/configs/j721s2_evm.h
+++ b/include/configs/j721s2_evm.h
@@ -21,10 +21,10 @@
 
 /* SPL Loader Configuration */
 #if defined(CONFIG_TARGET_J721S2_A72_EVM) || defined(CONFIG_TARGET_J7200_A72_EVM)
-#define CONFIG_SYS_UBOOT_BASE		0x50280000
+#define CFG_SYS_UBOOT_BASE		0x50280000
 /* Image load address in RAM for DFU boot*/
 #else
-#define CONFIG_SYS_UBOOT_BASE		0x50080000
+#define CFG_SYS_UBOOT_BASE		0x50080000
 #endif
 
 /* U-Boot general configuration */