LU-12610 osd: remove OBD_ -> CFS_ macros

LU-12610 osd: remove OBD_ -> CFS_ macros

Remove OBD macros that are simply redefinitions
of CFS macros.

The CFS macros are provided by libcfs.h, so add this
header where needed.

Test-Parameters: trivial
Signed-off-by: Timothy Day <timday@amazon.com>
Signed-off-by: Ben Evans <beevans@whamcloud.com>
Change-Id: Ia7f7ba611b98500ecf06137159649949a621476f
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/50805
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Arshad Hussain <arshad.hussain@aeoncomputing.com>
Reviewed-by: Neil Brown <neilb@suse.de>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Oleg Drokin <green@whamcloud.com>