mesa: validate shader binary format in _mesa_spirv_shader_binary Rework: * Jordan: Added ARB_gl_spirv text to comment. Signed-off-by: Tapani Pälli <tapani.palli@intel.com> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23155>