[libclc] Fix linking against libLLVMSupport

Fixes https://github.com/llvm/llvm-project/issues/62018.

GitOrigin-RevId: 382b56d5bd0356ba53bbaf9bfb988f315a7530b5
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0eda126..4a1c8b1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -115,6 +115,7 @@
   BitReader
   BitWriter
   Core
+  Support
 )
 add_llvm_executable( prepare_builtins utils/prepare-builtins.cpp )
 target_compile_definitions( prepare_builtins PRIVATE ${LLVM_VERSION_DEFINE} )