dt-bindings: arm: qcom: Document lg,judyln and lg,judyp devices

Add binding documentation for the LG G7 and LG V35 smartphones
which are based on Snapdragon 845 (sdm845).

Signed-off-by: Stefan Hansson <newbie13xd@gmail.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220626164536.16011-1-newbie13xd@gmail.com