Configure the vuart in such a way that it does not inhibit the SuperIO's UART from functioning correctly. This allows the same DTS to be used for both configurations with SuperIO and VUART (depending on the BIOS build). The decision on whether to actually enable VUART can then be made at runtime. This change also enables the new uart_routing driver for the SuperIO case. Signed-off-by: Oskar Senft <osk@google.com> Link: https://lore.kernel.org/r/20211130184855.1779353-1-osk@google.com Signed-off-by: Joel Stanley <joel@jms.id.au>