arm64: dts: qcom: sdm845: Support ETMv4 power management

Add "arm,coresight-loses-context-with-cpu" property to coresight
ETM nodes to avoid failure of trace session because of losing
context on entering deep idle states.

Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Link: https://lore.kernel.org/r/20200721071343.2898-1-saiprakash.ranjan@codeaurora.org


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