[gn build] Port 6d12b95

Author: llvmgnsyncbot

llvm/utils/gn/secondary/llvm/lib/ExecutionEngine/Orc/BUILD.gn

@@ -23,6 +23,7 @@ static_library("Orc") {
     "Core.cpp",
     "DebugObjectManagerPlugin.cpp",
     "DebugUtils.cpp",
+    "EHFrameRegistrationPlugin.cpp",
     "ELFNixPlatform.cpp",
     "EPCDebugObjectRegistrar.cpp",
     "EPCDynamicLibrarySearchGenerator.cpp",