LU-5030 util: migrate liblustreapi to use cfs_get_paths()

LU-5030 util: migrate liblustreapi to use cfs_get_paths()

Move liblustreapi library to use cfs_get_paths() so
it can be used with the upstream client as well.

Change-Id: I7c2ee3ded74dec0827f1aeaa631b1c334d39c917
Signed-off-by: Dmitry Eremin <dmitry.eremin@intel.com>
Signed-off-by: James Simmons <uja.ornl@yahoo.com>
Signed-off-by: Wang Chao <chao.ornl@gmail.com>
Reviewed-on: http://review.whamcloud.com/17468
Reviewed-by: Ben Evans <bevans@cray.com>
Tested-by: Jenkins
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>