Update cmake script

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72963 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CMakeLists.txt b/lib/CodeGen/CMakeLists.txt
index 668ac80..c206a3b 100644
--- a/lib/CodeGen/CMakeLists.txt
+++ b/lib/CodeGen/CMakeLists.txt
@@ -22,4 +22,5 @@
   CodeGenTypes.cpp
   Mangle.cpp
   ModuleBuilder.cpp
+  TargetABIInfo.cpp
   )