RDMA/hns: Bugfix for qpc/cqc timer configuration

RDMA/hns: Bugfix for qpc/cqc timer configuration

qpc/cqc timer entry size needs one page, but currently they are fixedly
configured to 4096, which is not appropriate in 64K page scenarios. So
they should be modified to PAGE_SIZE.

Fixes: 0e40dc2f70cd ("RDMA/hns: Add timer allocation support for hip08")
Link: https://lore.kernel.org/r/1571908917-16220-3-git-send-email-liweihang@hisilicon.com
Signed-off-by: Yangyang Li <liyangyang20@huawei.com>
Signed-off-by: Weihang Li <liweihang@hisilicon.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>