dt-bindings: usb: ci-hdrc-usb2: add i.MX8MM compatible

Add fsl,imx8mm-usb compatible for i.MX8MM

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20221223031012.92932-1-peng.fan@oss.nxp.com


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