oshmem/shmem/c: include missing headers

[alex--m]

See #12360

[github-actions]

Hello! The Git Commit Checker CI bot found a few problems with this PR:

fda165f: oshmem/shmem/c: include missing headers

• check_cherry_pick: does not include a cherry pick message (did you need to bot:notacherrypick?)

Please fix these problems and, if necessary, force-push new commits back up to the PR branch. Thanks!

[janjust]

@alex--m forgot the cherry-pick message (-x)

[github-actions]

Hello! The Git Commit Checker CI bot found a few problems with this PR:

e57fff5: oshmem/shmem/c: include missing headers

• check_cherry_pick: contains a cherry pick message that refers to a commit that exists, but is in an as-yet unmerged pull request: fda165f

Please fix these problems and, if necessary, force-push new commits back up to the PR branch. Thanks!

[alex--m]

@janjust does this pre-commit error means it depends on the merge to main branch? or is there something else I should do?

[janjust]

Yes, but I thought I just merged it

[janjust]

This is the main commit: d737f00
But the one here says:
cherry picked from commit fda165f

Did you cherry-pick from your branch? Maybe that's why

[alex--m]

You're probably right, fixing...