Summary: - Resolves an issue where `vfork_test` was not executed following the renaming from CONFIG_ARCH_HAVE_VFORK to CONFIG_ARCH_HAVE_FORK, as detailed in https://github.com/apache/nuttx/pull/9755. Impact: - Please merge https://github.com/apache/nuttx/pull/11200 before merging this PR. Testing: - Successfully tested with rv-virt:smp64, spresense:smp, and sim:smp. Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>