Fixed silly error

src/core/lib/iomgr/socket_windows.cc

@@ -188,10 +188,10 @@ void grpc_wsa_socket_flags_init() {
      https://msdn.microsoft.com/en-us/library/windows/desktop/ms742212(v=vs.85).aspx
      for details. */
   SOCKET sock = WSASocket(AF_INET6, SOCK_STREAM, IPPROTO_TCP, 0, NULL,
-                          grpc_wsa_socket_flags & WSA_FLAG_NO_HANDLE_INHERIT);
+                          grpc_wsa_socket_flags | WSA_FLAG_NO_HANDLE_INHERIT);
   if (sock != INVALID_SOCKET) {
     /* Windows 7, Windows 2008 R2 with SP1 or later */
-    grpc_wsa_socket_flags &= WSA_FLAG_NO_HANDLE_INHERIT;
+    grpc_wsa_socket_flags |= WSA_FLAG_NO_HANDLE_INHERIT;
     closesocket(sock);
   }
 }