LU-2884 libcfs: SMP optimizations cleanups

LU-2884 libcfs: SMP optimizations cleanups

Miscelaneous cleanups for the SMP optimizations code:
- Fixed typos.
- Fixed resource leak in lnet_create_locks().
- Fixed incorrect symbols in EXPORT_SYMBOL().

Signed-off-by: Isaac Huang <he.huang@intel.com>
Change-Id: I3b617367e5ed6b11ae327e477fc2c201c453e347
Reviewed-on: http://review.whamcloud.com/5547
Tested-by: Hudson
Reviewed-by: Liang Zhen <liang.zhen@intel.com>
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Doug Oucharek <doug.s.oucharek@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>