dt-bindings: media: ti: vpe: Add support for Video Input Port

dt-bindings: media: ti: vpe: Add support for Video Input Port

Add device tree bindings for the Video Input Port. Video Input Port (VIP)
can be found on devices such as DRA7xx and provides a parallel interface
to a video source such as a sensor or TV decoder.

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Signed-off-by: Benoit Parrot <bparrot@ti.com>
Signed-off-by: Sukrut Bellary <sbellary@baylibre.com>
Signed-off-by: Yemike Abhilash Chandra <y-abhilashchandra@ti.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>