arm64: dts: qcom: sc8280xp-x13s: Unreserve NC pins

Pins 83-86 and 158-160 are NC, so there's no point in keeping them
reserved. Take care of that.

Fixes: 32c23138

 ("arm64: dts: qcom: sc8280xp: add Lenovo Thinkpad X13s devicetree")
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230803-topic-x13s_pin-v1-1-fae792274e89@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>