Upgrade GH Actions to build using the containerized solution

Signed-off-by: Rafael Sene <rafael@riscv.org>

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Merge pull request #236 from ved-rivos/iommu_reg_clarify

Updated clarifying text about atomicity of 8 byte register access

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Merge pull request #228 from ved-rivos/issue_226_1

updating rc version

Merge pull request #222 from ved-rivos/atc_int_w_ats_trans

Update IOMMU ref model with option to cache ATS translations in IOMMU ATC

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updates

v0.1-peer-review

Tagging for first peer review session.

cleanup