RDMA/hns: Use hr_reg_xxx() instead of remaining roce_set_xxx()

To reduce the code size and make the code clearer, replace all
roce_set_xxx() with hr_reg_xxx() to write the data fields.

Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Wenpeng Liang <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>

Author: Wenpeng Liang