arm64: dts: qcom: sm8350-sagami: correct TS pin property

The pin configuration is selected with "pins", not "pin" property.

Fixes: 1209e9246632 ("arm64: dts: qcom: sm8350-sagami: Enable and populate I2C/SPI nodes")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20220912061746.6311-37-krzysztof.kozlowski@linaro.org