aidl_parser_fuzzer: reset corpus

Fuzzer is re-written to add more coverage, so:
- remove old corpus entries
- add a few more entries which can give more coverage

Bug: 195473218
Test: aidl_parser_fuzzer ./tests/corpus/

Change-Id: I93fea7fd4918a302e0460ae1209800dd1adfb0a4
31 files changed