arm64: dts: qcom: sc7180: Move the fixed-perm property to SoC dtsi

arm64: dts: qcom: sc7180: Move the fixed-perm property to SoC dtsi

All the platforms using SC7180 SoC are expected to have the wlan firmware
memory statically mapped by the Trusted Firmware. Hence move back the
qcom,msa-fixed-perm property to the SoC dtsi.

Reviewed-by: Douglas Anderson <dianders@chromium.org>
Fixes: 7d484566087c0 ("arm64: dts: qcom: sc7180: Add missing properties for Wifi node")
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200716191746.23196-1-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>