arm64: dts: sc7180: Add qspi opps and power-domains

Add the power domain supporting performance state and the corresponding
OPP tables for the qspi device on sc7180

Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Link: https://lore.kernel.org/r/1593769293-6354-4-git-send-email-rnayak@codeaurora.org


Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>