arm64: dts: qcom: ipq8074: add USB power domains

Add USB power domains provided by GCC GDSCs.
Add the required #power-domain-cells to the GCC as well.

Signed-off-by: Robert Marko <robimarko@gmail.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220515210048.483898-11-robimarko@gmail.com