tools: Fix tamiflex out.
tools: Fix tamiflex out.

- `out` is setup by PipelineElement.
- don't overwrite it, just set its content
- fix hook

Signed-off-by: Michael Markert <5eb998b7ac86da375651a4cd767b88c9dad25896@googlemail.com>

fhirschmann/penchy,fhirschmann/penchy