Merge "liblog: log reader validate headers" am: 0321476fe2 am: 0a7dec432c
am: 5d32a9821d

* commit '5d32a9821ddb2b9f85931ccccc89f28af42c5659':
  liblog: log reader validate headers

Change-Id: Icb7c5461db336fc40ff8eaf90cf86105c75b69da