arm64: dts: qcom: sc7280: move USB wakeup-source property

Move the USB-controller wakeup-source property to the dwc3 glue node to
match the updated binding.

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20220802152642.2516-1-johan+linaro@kernel.org