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/hikey.h b/include/configs/hikey.h
index 775f166..c5ef2f9 100644
--- a/include/configs/hikey.h
+++ b/include/configs/hikey.h
@@ -26,7 +26,7 @@
 
 #define CFG_SYS_SDRAM_BASE		PHYS_SDRAM_1
 
-#define CONFIG_SYS_INIT_RAM_SIZE	0x1000
+#define CFG_SYS_INIT_RAM_SIZE	0x1000
 
 /* Generic Interrupt Controller Definitions */
 #define GICD_BASE			0xf6801000