ARM: dts: exynos: Disable unused camera input for I9100

As the back camera is not implemented disable the second pair of fimc
child nodes as they are not functional. This prevents creating the
associated /dev/videoX devices.

Signed-off-by: Timon Baetz <timon.baetz@protonmail.com>
Link: https://lore.kernel.org/r/20210530105535.4165-1-timon.baetz@protonmail.com


Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>