Update Fuchsia-specific code to use the new MX_ error names

runtime/bin/socket_win.cc

Index: runtime/bin/socket_win.cc
diff --git a/runtime/bin/socket_win.cc b/runtime/bin/socket_win.cc
index 3e31350b95f00a4df9f6b36db57fb350289e85e2..21e2b20092533c5b4a037819ffc6edd262a37e4e 100644
--- a/runtime/bin/socket_win.cc
+++ b/runtime/bin/socket_win.cc
@@ -48,7 +48,7 @@ static intptr_t Create(const RawAddr& addr) {
   l.l_linger = 10;
   int status = setsockopt(s, SOL_SOCKET, SO_LINGER, reinterpret_cast<char*>(&l),
                           sizeof(l));
-  if (status != NO_ERROR) {
+  if (status != MX_OK) {

[zra, 2017/06/09 19:24:25]

ditto

     FATAL("Failed setting SO_LINGER on socket");
   }
 
@@ -66,7 +66,7 @@ static intptr_t Connect(intptr_t fd,
 
   int status =
       bind(s, &bind_addr.addr, SocketAddress::GetAddrLength(bind_addr));
-  if (status != NO_ERROR) {
+  if (status != MX_OK) {
     int rc = WSAGetLastError();
     handle->mark_closed();  // Destructor asserts that socket is marked closed.
     handle->Release();