message: update xpc service name.
diff: #define __XPC_PRIVATE_H__
  #include <xpc/xpc.h>
  -#define LaunchUsingXPCRightName "com.apple.dt.Xcode.RootDebuggingXPCService"
  +#define LaunchUsingXPCRightName "com.apple.lldb.RootDebuggingXPCService"
  // These XPC messaging keys are used for communication between Host.mm and the
  // XPC service.
  