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/rk3128_common.h b/include/configs/rk3128_common.h
index fac27a7..3025466 100644
--- a/include/configs/rk3128_common.h
+++ b/include/configs/rk3128_common.h
@@ -8,7 +8,7 @@
 
 #include "rockchip-common.h"
 
-#define CONFIG_SYS_HZ_CLOCK		24000000
+#define CFG_SYS_HZ_CLOCK		24000000
 
 #define CONFIG_IRAM_BASE		0x10080000