LU-10391 ptlrpc: change bd_sender in ptlrpc_bulk_frag_ops

LU-10391 ptlrpc: change bd_sender in ptlrpc_bulk_frag_ops

bd_sender in struct ptlrpc_bulk_frag_ops is now 'struct lnet_nid'.

Signed-off-by: Mr NeilBrown <neilb@suse.de>
Change-Id: I43a6600dcc814a6a46b3a793641545123efaa6ab
Reviewed-on: https://review.whamcloud.com/44640
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Frank Sehr <fsehr@whamcloud.com>
Reviewed-by: James Simmons <jsimmons@infradead.org>
Reviewed-by: Chris Horn <chris.horn@hpe.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>