Log number of connected devices
So we can track if users attempt to connect multiple Atrus devices via
USB
BUG=chromium:737937
TEST=Started atrusd, added/removed multiple devices and confirmed that it
logged the correct amount of devices connected
CQ-DEPEND=CL:552152
Change-Id: I9d909cd18b6db5fad8a9df6b80b7b57d8bbba37f
Reviewed-on: https://chromium-review.googlesource.com/558082
Commit-Ready: Emil Lundmark <lndmrk@chromium.org>
Tested-by: Emil Lundmark <lndmrk@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
4 files changed
