dt-bindings: media: csi: Add interconnects properties
The Allwinner CSI controller is sitting beside the MBUS that is represented
as an interconnect.
Make sure that the interconnect properties are valid in the binding.
Fixes: 7866d6903ce8 ("media: dt-bindings: media: sun4i-csi: Add compatible for CSI0 on R40")
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Rob Herring <robh@kernel.org>
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