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/bcm7445.h b/include/configs/bcm7445.h
index a07f1b7..1143372 100644
--- a/include/configs/bcm7445.h
+++ b/include/configs/bcm7445.h
@@ -12,7 +12,7 @@
 
 #define CFG_SYS_NS16550_COM1	0xf040ab00
 
-#define CONFIG_SYS_INIT_RAM_ADDR	0x80200000
+#define CFG_SYS_INIT_RAM_ADDR	0x80200000
 
 #include "bcmstb.h"