global: Move remaining CONFIG_SYS_NS16550_* to CFG_SYS_NS16550_*

The rest of the unmigrated CONFIG symbols in the CONFIG_SYS_NS16550
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/mt8183.h b/include/configs/mt8183.h
index eaffe0b..3da7619 100644
--- a/include/configs/mt8183.h
+++ b/include/configs/mt8183.h
@@ -12,8 +12,8 @@
 #include <linux/sizes.h>
 
 
-#define CONFIG_SYS_NS16550_COM1		0x11005200
-#define CONFIG_SYS_NS16550_CLK		26000000
+#define CFG_SYS_NS16550_COM1		0x11005200
+#define CFG_SYS_NS16550_CLK		26000000
 
 /* Environment settings */
 #include <config_distro_bootcmd.h>