Add a fuzzer for libfmq am: d683669c43 am: aedade9717

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/libfmq/+/14216026

Change-Id: I584ea83f3ef7035e8bd71985065ef048337581e6
tree: 7014855978cb3bf656dfb1ea428fe8053e5c279a
  1. base/
  2. benchmarks/
  3. fuzzer/
  4. include/
  5. tests/
  6. Android.bp
  7. EventFlag.cpp
  8. FmqInternal.cpp
  9. OWNERS
  10. PREUPLOAD.cfg
  11. TEST_MAPPING