arm64: dts: qcom: sdm845-db845c: drop gpios from CCI I2C sensors

The OV7251 and OV8856 camera sensor bindings do not allow
property "gpios" and Linux driver does not parse it.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20220802153947.44457-3-krzysztof.kozlowski@linaro.org