RDMA/hns: Fix an inappropriate err code for unsupported operations

driver inclusion
category: cleanup
bugzilla: https://gitee.com/openeuler/kernel/issues/I8DJVZ



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EOPNOTSUPP is more situable than EINVAL for allocating XRCD while XRC
is not supported and unsupported resizing SRQ.

Fixes: 32548870 ("RDMA/hns: Add support for XRC on HIP09")
Fixes: 221109e6 ("RDMA/hns: Add interception for resizing SRQs")
Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>