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/smdkc100.h b/include/configs/smdkc100.h
index 64963ee..ffa1a1f 100644
--- a/include/configs/smdkc100.h
+++ b/include/configs/smdkc100.h
@@ -88,7 +88,7 @@
  * Boot configuration
  */
 
-#define CONFIG_SYS_ONENAND_BASE		0xE7100000
+#define CFG_SYS_ONENAND_BASE		0xE7100000
 
 /*
  * Ethernet Contoller driver