npu2: Clear fence on all bricks
npu2: Clear fence on all bricks

A bug in the NVidia driver can cause an UR HMI which fences bricks
(links). At the moment we clear fence status only for bricks of a specific
devices, however this does not appear to be enough and we need to clear
fences for all bricks. This is ok as we do not allow using GPUs
individually anyway.

Signed-off-by: Alexey Kardashevskiy <ac1fc56530d7d037e1ea666f130daca22d72f964@ozlabs.ru>
Acked-by: Reza Arbab <4c896a97e6b998365c2d50a267b0f1ca5f7995de@linux.ibm.com>
Signed-off-by: Oliver O'Halloran <3dfaff8fa6ae977f042064a112a6aac576279b9b@gmail.com>

open-power/skiboot,qemu/skiboot,open-power/skiboot,shenki/skiboot,qemu/skiboot,legoater/skiboot,legoater/skiboot,qemu/skiboot,legoater/skiboot,legoater/skiboot,open-power/skiboot,legoater/skiboot,open-power/skiboot,qemu/skiboot,shenki/skiboot,qemu/skiboot,open-power/skiboot,shenki/skiboot,shenki/skiboot,shenki/skiboot