LU-2194 tests: Wait for reconnect in recovery-small/19

LU-2194 tests: Wait for reconnect in recovery-small/19

Fully wait for clients to reconnect before checking if evicted.

Signed-off-by: Nathaniel Clark <nathaniel.l.clark@intel.com>
Change-Id: I332d9b43344eb2c7c883fc28adfbbfb4eeb8a0d0
Reviewed-on: http://review.whamcloud.com/4652
Tested-by: Hudson
Reviewed-by: Vitaly Fertman <vitaly_fertman@xyratex.com>
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Jian Yu <jian.yu@intel.com>
Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>