TMF: Register analysis module to parameter provider only if trace active

TMF: Register analysis module to parameter provider only if trace active

Sometimes a module will register itself to a parameter provider, but it does
not correspond to the currently active trace, especially for modules from both
traces and experiments. This registers only the module for the currently
selected trace.

Change-Id: If29264c3823968530063cba4c6edd18c679baf69
Signed-off-by: Geneviève Bastien <gbastien+lttng@versatic.net>
Reviewed-on: https://git.eclipse.org/r/29356
Tested-by: Hudson CI