[release/8.0-staging] Fix few RandomAccess.Write edge case bugs#109648

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adamsitnik wants to merge 4 commits intodotnet:release/8.0-stagingfrom adamsitnik:backportWriteGather8

+254-33

Commits on Nov 8, 2024

RandomAccess.Write throws System.IO.IOException Fix (dotnet#108380 )

NicoAvanzDev
authored and
adamsitnik
committed
Handle IOV_MAX limit in RandomAccess, add missing test (dotnet#109340 )

committed

Commits on Nov 13, 2024

fix the tests: use AssertExtensions.SequenceEqual to compare the contents of ROM
adamsitnik
committed

Commits on Dec 12, 2024

More WriteGather fixes (dotnet#109826 )
adamsitnik
committed