dt-bindings: arm: qcom: Add QCM6490 Fairphone 5

Fairphone 5 is a smartphone based on the QCM6490 SoC.

Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230919-fp5-initial-v2-6-14bb7cedadf5@fairphone.com


Signed-off-by: Bjorn Andersson <andersson@kernel.org>