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/20220512080012.38728-2-liangwenpeng@huawei.comSigned-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>