arm64: dts: qcom: sm8550-qrd: use the PMU to power up bluetooth

Change the HW model in sm8550-qrd.dts to a one closer to reality - where
the WLAN and Bluetooth modules of the WCN7850 are powered by the PMU
inside the package.

Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/20240716-topic-sm8x50-upstream-use-pmu-to-power-up-bt-v1-2-67b3755edf6a@linaro.org


Signed-off-by: Bjorn Andersson <andersson@kernel.org>