media: ti: vpe: Add the VIP driver

media: ti: vpe: Add the VIP driver

VIP stands for Video Input Port. It can be found on devices such as DRA7xx
and provides a parallel interface to a video source such as a sensor or TV
decoder. Each VIP can support two inputs (slices) and an SoC can be
configured with a variable number of VIPs. Each slice can support two
ports, each connected to its own sub-device.

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>