arm64: dts: qcom: sm8450-qrd: Enable USB nodes

Enable the usb phy and usb controller in peripheral mode. This helps to
get the adb working with the QRD board.

Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211216110813.658384-2-vkoul@kernel.org