EX-4061 lipe: reinitialize channel after alr disconnection

EX-4061 lipe: reinitialize channel after alr disconnection

Move most of lamigo_alr_data_collection_thread() into
lamigo_alr_agent_run() which manages ssh channel resources
properly. Keep a while-try-sleep loop in
lamigo_alr_data_collection_thread().

Test-Parameters: trivial testlist=hot-pools
Signed-off-by: John L. Hammond <jhammond@whamcloud.com>
Change-Id: Ibe866f5b4a6ddea560dcb57fb0ed3fbbf3d52710
Reviewed-on: https://review.whamcloud.com/45243
Tested-by: jenkins <devops@whamcloud.com>
Reviewed-by: Alexandre Ioffe <aioffe@ddn.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Alex Zhuravlev <bzzz@whamcloud.com>
Reviewed-on: https://review.whamcloud.com/46097