doc: dt-binding: cdns,usb3: add wakeup-irq

To support low power mode for controller, the driver needs wakeup-irq
to reflect the signal changing after controller is stopped, and waking
the controller up accordingly.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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Peter Chen 2020-10-20 10:44:06 +08:00
commit 1bc514dfd1
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