[SYCL] Fix lit config for Windows

Signed-off-by: Artur Gainullin <[email protected]>

Author: againull

sycl/test/lit.site.cfg.in

@@ -4,6 +4,7 @@ import sys
 
 config.clang = "@CLANG_IN_BUILD@"
 config.llvm_tools_dir = "@LLVM_TOOLS_DIR@"
+config.lit_tools_dir = "@LLVM_LIT_TOOLS_DIR@"
 config.llvm_build_libs_dir = "@LLVM_BUILD_LIBRARY_DIRS@"
 config.llvm_binary_dir = "@LLVM_BINARY_DIR@"
 config.opencl_include = "@OPENCL_INCLUDE@"