Further the hack for testing for perf SW events.
Further the hack for testing for perf SW events.

Events like
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| perf::CPU-CLOCK                                                              |
|            PERF_COUNT_SW_CPU_CLOCK                                           |
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were passing the check, now we also check the event_info_struct.long_descr field for
PERF_COUNT_SW....

arm-hpc/papi,arm-hpc/papi,arm-hpc/papi,pyrovski/papi,arm-hpc/papi,pyrovski/papi,pyrovski/papi,arm-hpc/papi,arm-hpc/papi,pyrovski/papi,pyrovski/papi,pyrovski/papi,pyrovski/papi,pyrovski/papi,arm-hpc/papi