fx 添加更新源

usage: fx add-update-source  [--repo-name NAME] [--persist]

Configure target device to use a new update source.

  --repo-name NAME Name of the repository package server to use as the update source.
  --persist        Enable persistence of repo metadata. Disabled by default.


NAME:
If no name is supplied, the name defaults to configured default repository.

Note:
This is a wrapper for `ffx target repository register`