gallium/swr: Fix compilation TCS/TES compilation issues

Gallvm API changes in TCS/TES, but the compilation worked
for older LLVM APIs. With LLVM 12 update is needed.

Reviewed-by: Krzysztof Raszkowski <krzysztof.raszkowski@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6554>
1 file changed