[PATCH 7.2.y] iommu/arm-smmu-v3: Disable implementations during devm teardown

[Sasha Levin]

> Now that arm_smmu_disable_action() manages normal teardown, invoke the
> implementation callback there while the command queue is still alive.
> This prevents the subsequent implementation remove action from releasing
> resources while the CMDQV hardware remains active.
>
> Fixes: 5994617e09ee ("iommu/tegra241-cmdqv: Fix CMD_SYNC use-after-free on teardown")
> Signed-off-by: Wentao Guan <guanwentao at uniontech.com>

Queued for 7.2, thanks.

-- 
Thanks,
Sasha