LU-3963 osd-zfs: convert to linux list api

LU-3963 osd-zfs: convert to linux list api

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

Change-Id: If6cece695c744309e39165086e3ac791fa534ede
Signed-off-by: James Simmons <uja.ornl@gmail.com>
Reviewed-on: http://review.whamcloud.com/10898
Tested-by: Jenkins
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Alex Zhuravlev <alexey.zhuravlev@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>