dt-bindings: usb: usb-hcd: Add "tpl-support" property

The host controller device might be designed to work for the particular
products or applications. In that case its DT node is supposed to be
equipped with the tpl-support property.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Link: https://lore.kernel.org/r/20201210090944.16283-6-Sergey.Semin@baikalelectronics.ru


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>