arm64: dts: qcom: sm8350-sagami: Wire up USB regulators and fix USB3

Wire up necessary supplies to USB PHYs to enable USB3 on Sagami and
remove all the limit-to-USB2 properties.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221114143642.44839-2-konrad.dybcio@linaro.org