arm64: dts: qcom: msm8916: Make scm a reset-controller

On msm8916 SCM acts as a controller for the MSS_RESET found in the GCC,
update the DT node so that we can address this.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>