arm64: dts: qcom: msm8998: Add wifi node

Add the wifi node and required reserved memory to enable the wlan
hardware.  Enable the wifi node in both the mtp and clamshell platforms
after adding the relevant regulators for each platform.

Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Link: https://lore.kernel.org/r/20191107043313.4055-3-jeffrey.l.hugo@gmail.com


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