media: platform: amd: Introduce amd isp4 capture driver

AMD isp4 capture is a v4l2 media device which implements media controller
interface. It has one sub-device (AMD ISP4 sub-device) endpoint whic

media: platform: amd: Introduce amd isp4 capture driver

AMD isp4 capture is a v4l2 media device which implements media controller
interface. It has one sub-device (AMD ISP4 sub-device) endpoint which can
be connected to a remote CSI2 TX endpoint. It supports only one physical
interface for now. Also add ISP4 driver related entry info into the
MAINTAINERS file

Co-developed-by: Sultan Alsawaf <sultan@kerneltoast.com>
Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com>
Co-developed-by: Svetoslav Stoilov <Svetoslav.Stoilov@amd.com>
Signed-off-by: Svetoslav Stoilov <Svetoslav.Stoilov@amd.com>
Signed-off-by: Bin Du <Bin.Du@amd.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Reviewed-by: Sultan Alsawaf <sultan@kerneltoast.com>
Tested-by: Alexey Zagorodnikov <xglooom@gmail.com>
Tested-by: Kate Hsuan <hpa@redhat.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>

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