Cut down Wifi local log buffers size

The new buffer size can hold up to around 3 hours of logs. This
can be further optimized later after we have more usage data.
The goal is to save the logs from the last one hour only.

Bug: 29179543
Change-Id: I99e15531328fdb03df28dcf5a014deb2f074b254
3 files changed
tree: ecea8eefe8cbf361e6fff12afccd547a004a6154
  1. service/
  2. tests/