[PATCH 4/4 v2] perf stat: Add transaction flag (-T) support for s390

perf stat command line flag -T to display transaction counters is currently supported for x86 only. Add support for s390. It is based on the metrics flag -M transaction using the architecture dependend json files This requires a metric named transaction in the json files for the platform. As

[PATCH 4/4 v2] perf stat: Add transaction flag (-T) support for s390

perf stat command line flag -T to display transaction counters is currently supported for x86 only. Add support for s390. It is based on the metrics flag -M transaction using the architecture dependend json files This requires a metric named transaction in the json files for the platform. As