Cleanup the mess in msp430 target registration and hopefully unbreak the build

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79024 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/MSP430/MSP430TargetMachine.cpp b/lib/Target/MSP430/MSP430TargetMachine.cpp
index 56495e6..08190aa 100644
--- a/lib/Target/MSP430/MSP430TargetMachine.cpp
+++ b/lib/Target/MSP430/MSP430TargetMachine.cpp
@@ -17,8 +17,15 @@
 #include "llvm/PassManager.h"
 #include "llvm/CodeGen/Passes.h"
 #include "llvm/Target/TargetAsmInfo.h"
+#include "llvm/Target/TargetRegistry.h"
 using namespace llvm;
 
+extern "C" void LLVMInitializeMSP430Target() {
+  // Register the target.
+  RegisterTargetMachine<MSP430TargetMachine> X(TheMSP430Target);
+  RegisterAsmInfo<MSP430TargetAsmInfo> Z(TheMSP430Target);
+}
+
 MSP430TargetMachine::MSP430TargetMachine(const Target &T,
                                          const std::string &TT,
                                          const std::string &FS) :