[4.1.x] ch4/ucx: Limit IOV recv to UCX >= 1.16

[raffenet]

Pull Request Description

There is a bug in older versions that will cause this path to segfault with GPU buffers. Avoid it unless we are using a known good version.

Author Checklist

• [x] Provide Description Particularly focus on why, not what. Reference background, issues, test failures, xfail entries, etc.
• [x] Commits Follow Good Practice Commits are self-contained and do not do two things at once. Commit message is of the form: module: short description Commit message explains what's in the commit.
• [ ] Passes All Tests Whitespace checker. Warnings test. Additional tests via comments.
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[raffenet]

test:mpich/ch4/gpu/ucx