LU-7718 utils: lfs getstripe does not work on bind mount

LU-7718 utils: lfs getstripe does not work on bind mount

As /etc/mtab does not list original mount type and fsname
of bind mount point, using /prc/mounts to list out the
properties of the original mount point of bind mount.

Signed-off-by: vinayakswami hariharmath <vinayakswami.hariharmath@seagate.com>
Change-Id: Icf3644303552d56ad4e336decc5fadca581ff358
Reviewed-on: http://review.whamcloud.com/18195
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>