[SCSI] cxgb3i: re-initialize ddp settings after chip reset

Re-initialize the ddp settings after chip reset. It includes re-initialize
the related registers and the ddp map.

Signed-off-by: Karen Xie <kxie@chelsio.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>