Add support for RK3588 VICAP unit

Add basic support for the RK3588 VICAP unit. This MR contains the RK3568 support (v10 in flight), the RK3588 extensions (patch series in preparation, should be only sent out once the RK3568 support has been merged), and the RK3588 MIPI CSI-2 DPHY extensions (v2 in flight).

Related issues #34 #35

Installation notes

The overlays for the Radxa 4K cams are not installed and activated yet. This needs work in hardware-enablement/rockchip-3588/debian-image-recipes.

Make sure that both rk3588-rock-5b-plus-radxa-cam4k-cam0.dtbo and rk3588-rock-5b-plus-radxa-cam4k-cam1.dtbo are available in loaded by the bootloader.

Usage notes

Configure the media pipeline with

media-ctl -d 0 --set-v4l2 '"rockchip-mipi-csi fdd30000.csi":0[fmt:SGBRG10_1X10/3864x2192 field:none colorspace:raw xfer:none]'
media-ctl -d 0 --set-v4l2 '"rkcif-mipi2":0[fmt:SGBRG10_1X10/3864x2192 field:none colorspace:raw xfer:none]'
media-ctl -d 0 --set-v4l2 '"rockchip-mipi-csi fdd50000.csi":0[fmt:SGBRG10_1X10/3864x2192 field:none colorspace:raw xfer:none]'
media-ctl -d 0 --set-v4l2 '"rkcif-mipi4":0[fmt:SGBRG10_1X10/3864x2192 field:none colorspace:raw xfer:none]'

then start a GStreamer pipeline such as

gst-launch-1.0 v4l2src device=/dev/v4l/by-path/platform-fdce0000.video-capture-video-index0 ! video/x-bayer,format=gbrg10le,width=3864,height=2192 ! bayer2rgb ! kmssink
gst-launch-1.0 v4l2src device=/dev/v4l/by-path/platform-fdce0000.video-capture-video-index4 ! video/x-bayer,format=gbrg10le,width=3864,height=2192 ! bayer2rgb ! kmssink