Move examples to openamp-system-reference repo.

[tnmysh]

Openamp library isn't the right place to have demo and examples.

Move examples to openamp-system-reference repository without breaking backward compatibility.

[github-actions]

This issue has been marked as a stale issue because it has been open (more than) 45 days with no activity.

[tnmysh]

@arnopo , @wmamills

Created this PR in openamp-system-reference repo to address this issue: OpenAMP/openamp-system-reference#44

Once that is merged I will create another to remove demos from this repo.

[github-actions]

This issue has been marked as a stale issue because it has been open (more than) 45 days with no activity.

[arnopo]

Applications are now available in the OpenAMP system reference. This ticket will be closed when the OpenAMP library is cleaned up (target release: 2025.4).

[github-actions]

This issue has been marked as a stale issue because it has been open (more than) 45 days with no activity.