iommu/arm-smmu-v3: fix event handling soft lockup
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.14.276 by commit 5e580cce4d58b35e0ceb875578a53b49cc2e98b1. For more details please see the references link.