Use uint64_t instead of long long as API type for consistent reason.

cmds/incident_helper/src/ih_util.cpp

cmds/incident_helper/src/ih_util.h

cmds/incident_helper/src/parsers/CpuFreqParser.cpp

cmds/incident_helper/src/parsers/CpuInfoParser.cpp

cmds/incident_helper/src/parsers/EventLogTagsParser.cpp

cmds/incident_helper/src/parsers/KernelWakesParser.cpp

cmds/incident_helper/src/parsers/PageTypeInfoParser.cpp

cmds/incident_helper/src/parsers/ProcrankParser.cpp

cmds/incident_helper/src/parsers/PsParser.cpp

cmds/incident_helper/src/parsers/SystemPropertiesParser.cpp

cmds/incidentd/src/PrivacyBuffer.cpp

cmds/incidentd/src/Section.cpp

cmds/statsd/src/StatsLogProcessor.cpp

cmds/statsd/src/guardrail/StatsdStats.cpp

cmds/statsd/src/metrics/CountMetricProducer.cpp

cmds/statsd/src/metrics/DurationMetricProducer.cpp

cmds/statsd/src/metrics/EventMetricProducer.cpp

cmds/statsd/src/metrics/GaugeMetricProducer.cpp

cmds/statsd/src/metrics/MetricsManager.cpp

cmds/statsd/src/metrics/ValueMetricProducer.cpp