ARM: dts: import initial DT for BPI-CM4 module with BPI-CM4IO baseboard

ARM: dts: import initial DT for BPI-CM4 module with BPI-CM4IO baseboard

Import initial support for BPI-CM4 module with BPI-CM4IO baseboard
from the Linux submission applied at [1].

The BananaPi BPI-CM4 module follows the CM4 specifications at [2],
but with a single HDMI port and a single DSI output.

The current CM4IO baseboard DT should work fine on the Raspberry CM4
baseboard and other derivatives baseboards, but proper DT should
be written for other baseboards.

[1] https://git.kernel.org/amlogic/c/0262f2736978b1763363224698f47112a148dab0
[2] https://datasheets.raspberrypi.com/cm4io/cm4io-datasheet.pdf

Link: https://lore.kernel.org/r/20230307-u-boot-cm4-v1-1-43f5a393cd37@linaro.org
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>