cxgb4: fix abort_req_rss6 struct

cxgb4: fix abort_req_rss6 struct

[ Upstream commit 9f34519a82356f6cf0ccb8480ee0ed99b3d0af75 ]

Remove the incorrect WR_HDR field which can cause a misinterpretation
of ABORT CPL by ULDs, such as iw_cxgb4.

Fixes: a3cdaa69e4ae ("cxgb4: Adds CPL support for Shared Receive Queues")
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>