Merge "Add systrace tag for system property" into rvc-dev-plus-aosp

    { "aidl",       "AIDL calls",               ATRACE_TAG_AIDL, { } },

    { "nnapi",      "NNAPI",                    ATRACE_TAG_NNAPI, { } },

    { "rro",        "Runtime Resource Overlay", ATRACE_TAG_RRO, { } },

    { "sysprop",    "System Property",          ATRACE_TAG_SYSPROP, { } },

    { k_coreServiceCategory, "Core services", 0, { } },

    { k_pdxServiceCategory, "PDX services", 0, { } },

    { "sched",      "CPU Scheduling",   0, {