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/ti_omap5_common.h b/include/configs/ti_omap5_common.h
index c49c177..37ab2e4 100644
--- a/include/configs/ti_omap5_common.h
+++ b/include/configs/ti_omap5_common.h
@@ -17,7 +17,7 @@
 #define __CONFIG_TI_OMAP5_COMMON_H
 
 /* Use General purpose timer 1 */
-#define CONFIG_SYS_TIMERBASE		GPT2_BASE
+#define CFG_SYS_TIMERBASE		GPT2_BASE
 
 #include <linux/stringify.h>