platform: recover_duts: update README pointer to conf file

The README was pointing to an obsolete or incorrect location
for the source of the recover_duts.conf upstart file.
This is important since we moved the check for .lab_machine
into that conf file.

BUG=none
TEST="ls -l ~/trunk/src/platform2/init/upstart/test-init/recover_duts.conf"

Change-Id: Ie056f77a3b5e2e9d118972434b633fef586a2ac9
Reviewed-on: https://chromium-review.googlesource.com/1238951
Commit-Ready: Grant Grundler <grundler@chromium.org>
Tested-by: Grant Grundler <grundler@chromium.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Grant Grundler <grundler@chromium.org>
1 file changed