tests/tcg/multiarch: add missing vma-pthread test Reviewed-by: Philippe Mathieu-Daudé <philmd@oss.qualcomm.com> Link: https://lore.kernel.org/qemu-devel/20261001163751.172720-2-pierrick.bouvier@oss.qualcomm.com Signed-off-by: Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>