v3dv: include Vulkan version 1.1 as unsupported.

v3dv: include Vulkan version 1.1 as unsupported.

This is so we can generate entry points for extensions that have been
promoted to core in 1.1.

Entry points for promoted extensions are aliased without the KHR suffix
in the Vulkan API XML, and the entry point generation scripts are designed
to point the dispatch tables to entry points generated from the non-aliased
function names, however, these are not included in the header file without
this change.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>