LU-3963 ofd: convert to linux list api

LU-3963 ofd: convert to linux list api

Move from the cfs_[h]list api to the native linux api for
all the code related to OFD.

Change-Id: I83ee0ed2bff48a517174113859cc3f4c07fd797e
Signed-off-by: James Simmons <uja.ornl@gmail.com>
Reviewed-on: http://review.whamcloud.com/10921
Tested-by: Jenkins
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Nathaniel Clark <nathaniel.l.clark@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>