Merge branch 'net-mctp-test-minor-kunit-test-fixes'

Jeremy Kerr says:

====================
net: mctp: test: minor kunit test fixes

This series provides two fixes in the MCTP kunit tests - one exposed by
ktr, and one found while debugging the former on different VM configs.
====================

Link: https://patch.msgid.link/20260429-dev-mctp-test-fixes-v1-0-1127b7425809@codeconstruct.com.au
Signed-off-by: Jakub Kicinski <kuba@kernel.org>