LU-3268 lod: support BE servers in lod_verify_striping()

LU-3268 lod: support BE servers in lod_verify_striping()

To support big-endian Lustre servers, in lod_verify_striping() use
leNN_to_cpu() to access the members of struct lov_user_md.

Signed-off-by: John L. Hammond <john.hammond@intel.com>
Change-Id: I146e35ab75bc290e92aa9d68211fa1ffedada29b
Reviewed-on: http://review.whamcloud.com/6273
Tested-by: Hudson
Reviewed-by: Li Wei <wei.g.li@intel.com>
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Alex Zhuravlev <alexey.zhuravlev@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>