[RHEL9.5] iommu/amd: Fix panic accessing amd_iommu_enable_faulting

Merge Request Required Information

JIRA: https://issues.redhat.com/browse/RHEL-40344
JIRA: https://issues.redhat.com/browse/RHEL-37320
Upstream Status: Posted: https://lore.kernel.org/linux-iommu/ZljHE%2FR4KLzGU6vx@hpe.com/
Tested: Reproduced and verified fix on amd system in beaker by taking cpu offline and back online.

Summary of Changes

Remove __init annotation from amd_iommu_enable_faulting now that it can be called during cpu hotplug.

Note: Joerg hasn't pulled this into his tree yet, but it is very straightforward and I would like to get it in asap to avoid trouble for others with cpu hotplug tests.

Signed-off-by: Jerry Snitselaar jsnitsel@redhat.com

Approved Development Ticket

All submissions to CentOS Stream must reference an approved ticket in Red Hat Jira. Please follow the CentOS Stream contribution documentation for how to file this ticket and have it approved.