libfmq: Improve error logging am: a78c0d2b53

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/libfmq/+/11842976

Change-Id: I59330353ad9b324f60541e00c002922af44fcf26
tree: f715f20b30c81b4c22a776e012502b2dd77d94cf
  1. benchmarks/
  2. include/
  3. tests/
  4. Android.bp
  5. EventFlag.cpp
  6. FmqInternal.cpp
  7. OWNERS
  8. PREUPLOAD.cfg