arm64: dts: qcom: sc7180: Add wakeup parent for TLMM

Specify wakeup parent irqchip for sc7180 TLMM.

Reviewed-by: Lina Iyer <ilina@codeaurora.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Cc: devicetree@vger.kernel.org
Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
Link: https://lore.kernel.org/r/1572419178-5750-3-git-send-email-mkshah@codeaurora.org


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