buffet: Mark CloudDelegateImpl state on registration success

This was lost during merging privetd and buffet.
Without that second registration is not possible as device reports
that pending registration in progress.

BUG=brillo:1216
TEST=run twice localapis:register_privet_devices_prod_test

Change-Id: Idc7666ea8b875c39b1afd3f489d3c94aca1b1d49
Reviewed-on: https://chromium-review.googlesource.com/280881
Reviewed-by: Alex Vakulenko <avakulenko@chromium.org>
Tested-by: Vitaly Buka <vitalybuka@chromium.org>
Commit-Queue: Vitaly Buka <vitalybuka@chromium.org>
1 file changed
tree: 316be0e75ce22785b882b37651ee9aa03f21e0b8
  1. buffet/