[monorepo] add backwards compatible changes to get miopen working in … (#3913)

* add backwards compatible changes to get miopen working in the monorepo
* use proper credentials for each repo
* Determine node's remote_root directory to mount into docker

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Co-authored-by: Eiden Yoshida <47196116+eidenyoshida@users.noreply.github.com>
Co-authored-by: BradPepersAMD <Brad.Pepers@amd.com>

Author: 3 people