LU-7184 lod: cleanup unused OSP devices on error

LU-7184 lod: cleanup unused OSP devices on error

In lod_add_device() if the OSP device to be added cannot be added then
call LCFG_CLEANUP in the cleanup path.

Signed-off-by: John L. Hammond <john.hammond@intel.com>
Change-Id: I01e0a5b0f541481a002cf60fcece05908ba3194f
Reviewed-on: http://review.whamcloud.com/16635
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: wangdi <di.wang@intel.com>
Reviewed-by: Mike Pershin <mike.pershin@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>