arm64: dts: qcom: sc8280xp: correct LPASS GPIO gpio-ranges

The SC8280XP LPASS pin controller has GPIOs 0-18, so correct the number
of GPIOs in gpio-ranges.

Fixes: c18773d1 ("arm64: dts: qcom: sc8280xp: add SoundWire and LPASS")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230203164854.390080-5-krzysztof.kozlowski@linaro.org