clc: llvm 17 requires opaque pointers.

You can't turn this off for llvm17+, this at least makes things
run against llvm git now instead of blowing up in clang.

Reviewed-by: Karol Herbst <kherbst@redhat.com>
Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24000>

src/compiler/clc/clc_helpers.cpp

@@ -783,7 +783,7 @@ clc_compile_to_llvm_module(LLVMContext &llvm_ctx,
 #else
       "-finclude-default-header",
 #endif
-#if LLVM_VERSION_MAJOR >= 15
+#if LLVM_VERSION_MAJOR >= 15 && LLVM_VERSION_MAJOR < 17
       "-no-opaque-pointers",
 #endif
       // Add a default CL compiler version. Clang will pick the last one specified