i965: Move TES input VUE map calculation out a layer.

i965: Move TES input VUE map calculation out a layer.

In Vulkan, we'll compile the TCS and TES at the same time, so I can just
pass the TCS output VUE map to brw_compile_tes as the TES input VUE map.

So, we only need to do this in GL.  Move it to the GL-specific layer.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>