RDMA/ocrdma: SQ and RQ doorbell offset clean up

Introducing new macros to define SQ and RQ doorbell offset.

Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com>
Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

diff --cc drivers/infiniband/hw/ocrdma/ocrdma.h
Simple merge

diff --cc drivers/infiniband/hw/ocrdma/ocrdma_sli.h
Simple merge

diff --cc drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
Simple merge