arm: dts: introduce dtsi for i.MX8QXP

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>
4 files changed