linux-imx

RDMA/hns: Update convert function of endian format

Because the sys_image_guid of ib_device_attr structure is __be64, it
need to use cpu_to_be64 for converting.

Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>