LU-15028 tests: improve ha.sh to be more verbose

LU-15028 tests: improve ha.sh to be more verbose

Patch adds some informing messages to make the failure
reason detection simpler.

Test-Parameters: trivial
Signed-off-by: Elena Gryaznova <elena.gryaznova@hpe.com>
HPE-bug-id: LUS-10286
Reviewed-by: Vladimir Saveliev <vlaidimir.saveliev@hpe.com>
Reviewed-by: Andriy Skulysh <andriy.skulysh@hpe.com>
Change-Id: I3bef165f497d745c3e8ee3c8a91532096100bb99
Reviewed-on: https://review.whamcloud.com/45025
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>