ns16550: move CONFIG_SYS_NS16550 to Kconfig

Move CONFIG_SYS_NS16550 to Kconfig, and run moveconfig.py.

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
diff --git a/configs/crownbay_defconfig b/configs/crownbay_defconfig
index 3f9b20a..c5382d0 100644
--- a/configs/crownbay_defconfig
+++ b/configs/crownbay_defconfig
@@ -24,6 +24,7 @@
 CONFIG_PCH_GBE=y
 CONFIG_DM_PCI=y
 CONFIG_DM_RTC=y
+CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_DM_USB=y
 CONFIG_VIDEO_VESA=y