iommu/arm-smmu: Fix arm_smmu_device refcount leak when arm_smmu_rpm_get fails

iommu/arm-smmu: Fix arm_smmu_device refcount leak when arm_smmu_rpm_get fails

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 v5.4.134 by commit 3761ae0d0e549f2acdaf11f49df4ed06d256b20f. For more details please see the references link.