drm/amdgpu: Make use of drm_wedge_task_info

To notify userspace about which task (if any) made the device get in a
wedge state, make use of drm_wedge_task_info parameter, filling it with
the task PID and name.

Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20250617124949.2151549-7-andrealmeid@igalia.com


Signed-off-by: André Almeida <andrealmeid@igalia.com>