[gn build] Port 0a3c5c4

Author: llvmgnsyncbot

llvm/utils/gn/secondary/llvm/lib/CodeGen/BUILD.gn

@@ -253,6 +253,7 @@ static_library("CodeGen") {
     "WasmEHPrepare.cpp",
     "WinEHPrepare.cpp",
     "WindowScheduler.cpp",
+    "WindowsSecureHotPatching.cpp",
     "XRayInstrumentation.cpp",
   ]
 }