vulkan: prefer vulkan_core.h over vulkan.h

vulkan: prefer vulkan_core.h over vulkan.h

If we include vulkan.h, we risk including the WSI bits as well, which we
don't need here. Only trouble can follow from including these where
they're not needed.

So let's include vulkan_core.h in these places instead.

Fixes: b39958a3a18 ("anv,nir: Move the ANV YCbCr lowering pass to common code")
Reviewed-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21185>