arm64: dts: qcom: msm8996: Disable ADSP and add power domains

Disable ADSP by default and enable it in devices that use it.
Also add CX power domain.

Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
Link: https://lore.kernel.org/r/Epn1vFjJb0oQhqMYxspzL6X1N6MPcDT1f9oVVOjXc@cp3-web-020.plabs.ch
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>