arm64: dts: qcom: sc7280: herobrine: Add pinconf settings for mi2s1

1. Add drive strength property for mi2s1 on sc7280 based platforms.
2. Disable the pull-up for mi2s1 lines.

Signed-off-by: Judy Hsiao <judyhsiao@chromium.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20220721083849.1571744-2-judyhsiao@chromium.org