arm64: dts: qcom: sm8350-hdk: align pin config node names with bindings

Bindings expect pins to be named with certain pattern.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Fixes: d96d8f91 ("arm64: dts: qcom: sm8350-hdk: Enable lt9611uxc dsi-hdmi bridge")
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230201154321.276419-1-krzysztof.kozlowski@linaro.org