Refactor libsimpleperf_report_fuzzer

The following are updates to the fuzzer:
1. Added new APIs and randomized API calls.
2. Added dictionary to create a valid RecordFileReader

Test: ./libsimpleperf_report_fuzzer corpus/
exec/s: 165
Bug: 342518657

Change-Id: If80b3bf9b41b30e47148f02ebe75aa9b70e6b0c5
3 files changed