Additional LMK diagnostic information

Add free memory / swap as well as the kill reason to better understand
and diagnose lmkd behaviour in the field

Change-Id: I190f70758daa442b8605e17960c74574676fa3ae
Test: build with corresponding lmkd change
1 file changed
tree: 8814a6cda8fe33ab4705c9c4ab8d837e1620a49c
  1. atom_field_options.proto
  2. atoms.proto