Merge branch 'selftests-fib_tests-fixes-for-multipath-list-receive-tests'

Ido Schimmel says:

====================
selftests: fib_tests: Fixes for multipath list receive tests

Fix two issues in recently added FIB multipath list receive tests.
====================

Link: https://lore.kernel.org/r/20231010132113.3014691-1-idosch@nvidia.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>