v1.17: [zk-token-sdk] Restrict Edwards and Ristretto multiscalar multiplication vector length to at most 512 (backport of #34763)

[mergify]

This is an automatic backport of pull request #34763 done by Mergify.
Cherry-pick of 7321859 has failed:

On branch mergify/bp/v1.17/pr-34763
Your branch is up to date with 'origin/v1.17'.

You are currently cherry-picking commit 73218595c6.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   programs/bpf_loader/src/syscalls/mod.rs

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   sdk/src/feature_set.rs

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (407dfba) 81.6% compared to head (7891eac) 81.6%.
Report is 1 commits behind head on v1.17.

Additional details and impacted files

@@           Coverage Diff           @@
##            v1.17   #34849   +/-   ##
=======================================
  Coverage    81.6%    81.6%           
=======================================
  Files         805      805           
  Lines      218806   218844   +38     
=======================================
+ Hits       178747   178793   +46     
+ Misses      40059    40051    -8