Arm64/Sve: Implement the SVE APIs that takes 32-bit address as input

[kunalspathak]

There are several APIs that operates on truncated address such that it is valid in 4GB memory range. We implemented the APIs, but realized that adding test might not be straight forward because it will involve calling VirtualAlloc or equivalent to make sure that the address is in that range. As such we decided to skip such APIs and add them opportunistically if time permits.

Related discussion: #103159 (comment)

[kunalspathak]

@dotnet/arm64-contrib

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[jeffhandley]

@kunalspathak Is the 9.0.0 milestone appropriate for this, or should we set it to 10.0.0?