arm64: dts: qcom: sc8280xp-lenovo-thinkpad: correct pin drive-strength

Fix typo in drive-strength property name.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230407180710.128815-1-krzysztof.kozlowski@linaro.org