usb: dwc2: Add platform specific data for Intel's Agilex

The DWC2 IP on the Agilex platform does not support clock-gating.

Acked-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Link: https://lore.kernel.org/r/20220125161821.1951906-2-dinguyen@kernel.org


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