LU-10391 lnet: Fault injection add/del ioctls to netlink

LU-10391 lnet: Fault injection add/del ioctls to netlink

Convert the fault injection add/del ioctls to a netlink
implementaiton.

Test-Parameters: trivial testlist=sanity-lnet
Signed-off-by: Chris Horn <chris.horn@hpe.com>
Change-Id: I20f38d4e7c0215a1b19772c6253c617174c0b00c
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/53732
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Serguei Smirnov <ssmirnov@whamcloud.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Oleg Drokin <green@whamcloud.com>