arm64: dts: qcom: sm8150-mtp: Enable WiFi node

Enable the WiFi node and specify its supply regulators.

Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Jonathan Marek <jonathan@marek.ca>
[bjorn: Extracted patch from larger HDK patch]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20201121055808.582401-2-bjorn.andersson@linaro.org


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