LU-8066 fid: use LDEBUGFS_SEQ_* macro

LU-8066 fid: use LDEBUGFS_SEQ_* macro

Lustre has LPROC_SEQ_* for proc handling and LDEBUGFS_SEQ_* macros
for debugfs handling. While similar using the wrong macro can
break things. To avoid that chance lets move the fid subsystem to
the LDBEUGFS_SEQ_* macro since its already moved to debugfs.

Change-Id: I3936c72f9fb58a38847822dad21c4b6f5e1d7a78
Signed-off-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-on: https://review.whamcloud.com/34372
Reviewed-by: Olaf Weber <olaf.weber@hpe.com>
Reviewed-by: Ben Evans <bevans@cray.com>
Tested-by: Jenkins
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>