Current abort code defaults to legacy single queue where hardware_lock is used
to protect command search.  This patch moves this code behind the QPair where
the qp_lock_ptr will reference the appropriate lock for either legacy/single
queue or MQ.
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>