arm64: dts: qcom: sc7280-qcard: Add ldo_l17b regulator node

Add pm7325 ldo_l17b regulator, which is required for
wcd codec vdd buck supply on sc7280-qcard board.

Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
Co-developed-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Signed-off-by: Venkata Prasad Potturu <quic_potturu@quicinc.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1650621734-10297-1-git-send-email-quic_srivasam@quicinc.com