dt-bindings: drm: rockchip: convert inno_hdmi-rockchip.txt to yaml

Convert inno_hdmi-rockchip.txt to yaml.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Link: https://lore.kernel.org/r/49c6afec-022f-02de-99a0-d409b64da198@gmail.com


Signed-off-by: Rob Herring <robh@kernel.org>