intel: fix generation shader on Gfx9
What does this MR do and why?
intel: fix generation shader on Gfx9
This probably interacts badly with the LLVM17+ opaque pointer
workaround. Hopefully I can move this all over Alyssa's pass.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Fixes: b52e25d3a8 ("anv: rewrite internal shaders using OpenCL")
Closes: #12413 (closed)