custom sa6400

[jinejun]

{"format":"img","size":"4GB","template":"false","language":"zh_CN","model":"SA6400","version":"7.4.0-90075-0","addons":"acpid,trivial,vmtools,monitor,diskcompat,mountloader,powersched,reboottoloader,cpuinfo,console,expands"}

[github-actions]

Hi @jinejun.
RR-SA6400-26.6.1 build success, please download the attachment from the below link (Attachments are only kept for 5 days).

https://github.com/RROrg/rr/actions/runs/28341939387

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