arm64: dts: qcom: sc7280: Move wcd specific pin conf to common file

Move wcd specific pin conf to common file to support various
herbronie variant boards and to avoid duplicate nodes in dts files.

Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1657197381-1271-1-git-send-email-quic_srivasam@quicinc.com