MapInfo: Add "_" suffix to fields. am: 3c58094d66 am: 3387c8d256

Original change: https://android-review.googlesource.com/c/platform/system/unwinding/+/1705380

Change-Id: I5544f9855a6bfed0843f51f67ead695b9887e13c
tree: 6f949ceea2accf3c0496bf161c4169de15a93adf
  1. libbacktrace/
  2. libunwindstack/
  3. Android.bp
  4. OWNERS
  5. PREUPLOAD.cfg