Make libfmq buildable for native_bridge am: 6c32823073 am: 9e130b001e

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/libfmq/+/12128192

Change-Id: I381ee34bf7d411d3a7c6fe499aee7a08b81d05b1
tree: a92b48b2833b73e187afc379208e281a984b2f78
  1. Android.bp
  2. EventFlag.cpp
  3. FmqInternal.cpp
  4. OWNERS
  5. PREUPLOAD.cfg
  6. benchmarks/
  7. include/
  8. tests/