The ssh-copy-id command syntax in sdk-ade-remote-debugging.yaml is
incorrect in two ways:

- The user is in capitals, whilst the actual username used should be in
  lower case
- The test case uses `$HOST` as a convention for the hostname/IP to be used
  for the target device, this command is missing the dollar sign.

Signed-off-by: Martyn Welch <martyn.welch@collabora.com>