Add a new 'bootstat_summary' command.

The command prints a simple summary of boot phase timings and
CPU utilization.

BUG=None
TEST=run the command from shell prompt

Change-Id: Ibf53369572808bb80b9cb0dc1e6c77742c2f8857
Reviewed-on: https://gerrit.chromium.org/gerrit/26270
Tested-by: Richard Barnette <jrbarnette@chromium.org>
Reviewed-by: Daniel Erat <derat@chromium.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Commit-Ready: Richard Barnette <jrbarnette@chromium.org>
1 file changed