arm64: dts: qcom: ipq8074: disable USB phy by default

arm64: dts: qcom: ipq8074: disable USB phy by default

One of the QUSB USB PHY-s has been left enabled by
default, this is probably just a mistake as other
USB PHY-s are disabled by default.

It makes no sense to have it enabled by default as
not all board implement USB ports, so disable it.

Reviewed-by: Kathiravan T <kathirav@codeaurora.org>
Signed-off-by: Robert Marko <robimarko@gmail.com>
Link: https://lore.kernel.org/r/20210526150125.1816335-1-robimarko@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>