isci: remove usage of sci_sas_address in scic_sds_remote_device

The sas address can be retrieved from the domain device and then
converted to the always little-endian format in the remote node context.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>

diff --cc drivers/scsi/isci/remote_device.c
Simple merge

diff --cc drivers/scsi/isci/remote_device.h
Simple merge

diff --cc drivers/scsi/isci/remote_node_context.c
Simple merge