mfd: at91-usart: Make it selectable for ARCH_LAN969X
LAN969x uses the AT91 USART IP so make it selectable for ARCH_LAN969X.
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20250131171739.1044701-2-robert.marko@sartura.hr
Signed-off-by: Lee Jones <lee@kernel.org>
authored by