[RFC v2 6/8] drm/panthor: Implement the counter sampler and sample handling

[Lukas Zapolskas <lukas.zapolskas@xxxxxxx>]

From: Adrián Larumbe <adrian.larumbe@xxxxxxxxxxxxx>

The sampler aggregates counter and set requests coming from userspace
and mediates interactions with the FW interface, to ensure that user
sessions cannot override the global configuration.