feat(4g): Compatible with ec20 and ec200

huangcm

2024-12-18 9d29be7f7249789d6ffd0440067187a9f040c2cd

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<?xml version="1.0"?>
<D:propfind xmlns:D="http://www.ietf.org/standards/dav/">
  <D:prop>
    <supportedlock/>
  </D:prop>
</D:propfind>