Kconfig symbols CONFIG_VIDEO_MICROCHIP_CSI2DC, CONFIG_VIDEO_MICROCHIP_ISC
and CONFIG_VIDEO_MICROCHIP_XISC are missing for sama5 and sama7 causing
the build to abort or waiting for user input. Add the symbols (disabled)
so build with Linux 6.6 succeeds.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>