Update boost deps for core and mss, track Sparta PR397 (#42)

This fixes #35 and tracks the changes in Sparta
[PR397(https://github.com/sparcians/map/pull/397

), which are merges into Sparta main already. 

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Signed-off-by: Peter Debacker <peter-d@users.noreply.github.com>
Signed-off-by: Knute Lingaard <knute.lingaard@sifive.com>
Co-authored-by: Peter Debacker <pdback@imec.be>
Co-authored-by: Knute Lingaard <Knute.Lingaard@sifive.com>
Co-authored-by: Knute Lingaard <klingaard@gmail.com>