drm/amdgpu: use drm_file_err in fence timeouts

drm/amdgpu: use drm_file_err in fence timeouts

use drm_file_err instead of DRM_ERROR which adds
process and pid information in the userqueue error
logging.

Sample log:

[   19.802315] amdgpu 0000:0a:00.0: [drm] *ERROR* comm: ibus-x11 pid: 2055 client: Unset ... Couldn't unmap all the queues
[   19.802319] amdgpu 0000:0a:00.0: [drm] *ERROR* comm: ibus-x11 pid: 2055 client: Unset ... Failed to evict userqueue
[   19.838432] amdgpu 0000:0a:00.0: [drm] *ERROR* comm: systemd-logind pid: 1042 client: Unset ... Couldn't unmap all the queues
[   19.838436] amdgpu 0000:0a:00.0: [drm] *ERROR* comm: systemd-logind pid: 1042 client: Unset ... Failed to evict userqueue

Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>