LU-8066 fid: move all files from procfs to debugfs

LU-8066 fid: move all files from procfs to debugfs

Linux-commit: f3aa79fbef7942971825fb2084a88e9527c6b04c

Besides the client port form upstream also port the server
side proc entires to debugfs.

Change-Id: I934fc5a39c8c407799abd0d6154240d3a579c93e
Signed-off-by: Dmitry Eremin <dmiter4ever@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-on: https://review.whamcloud.com/28366
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: Fan Yong <fan.yong@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>