[media] Documentation: devicetree: Add document bindings for mtk-cir

This patch adds documentation for devicetree bindings for
consumer Mediatek IR controller.

Signed-off-by: Sean Wang <[email protected]>
Acked-by: Rob Herring <[email protected]>
Signed-off-by: Sean Young <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
1 file changed