[PATCH 0/2][j/k linux-aws] Support non-strict iommu mode on arm64

[Tim Gardner]

BugLink: https://bugs.launchpad.net/bugs/1806488

[Impact]

For Ubuntu 20.04 and 22.04 ARM AMIs, a change was made in the default settings
with the release of the 5.15 Kernel update that has caused a regression.
Starting with 5.15, the IOMMU settings have been set to `CONFIG_IOMMU_DEFAULT_DMA_STRICT=y`.
In previous versions, this setting was set to `CONFIG_IOMMU_DEFAULT_DMA_LAZY=y`.

[Test Case]

Amazon tested.

[Where things could go wrong]

This feature has been pretty well tested on arm64. Not setting LAZY was an oversight.

[Other Info]

SF: #00347225