To remove CONFIG_PINCTRL from board side for numaker boards.
The Drivers using Pinctrl should be turning Pinctrl on
instead of the responsibility of the board.
Fixes#78619
Signed-off-by: cyliang tw <cyliang@nuvoton.com>
Add Nuvoton numaker series UART support, including interrupt-driven,
also apply pinctrl and clock-control.
Signed-off-by: cyliang tw <cyliang@nuvoton.com>