drivers: initial support for xsc drivers from Yunsilicon Technology

yunsilicon inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I89GNZ


CVE: NA

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Yunsilicon XSC drivers provide both Ethernet and RDMA features for
metaConnect SmartNICs and metaFusion DPUs.

Reviewed-by: Weihonggang <weihg@yunsilicon.com>
Reviewed-by: heye <hey@yunsilicon.com>
Reviewed-by: Jacky <jacky@yunsilicon.com>
Signed-off-by: Wanrenyong <wanry@yunsilicon.com>