Add support for lpuart1, lpuart2 and lpuart3. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Reviewed-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Igor Opaniuk <igor.opaniuk@toradex.com>
Introduce dtsi for i.MX8QXP, since there is other variants i.MX8DX(P), so add them there, because i.MX8QXP includes the dtsi of them. Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by: Anatolij Gustschin <agust@denx.de>