Fix include order for Win32.

Author: halx99

cocos/platform/win32/CCStdC-win32.h

@@ -97,12 +97,12 @@ typedef SSIZE_T ssize_t;
 #ifndef NOMINMAX
   #define NOMINMAX
 #endif
-// Structure timeval has define in winsock.h, include windows.h for it.
-#include <Windows.h>
 
 #ifndef __MINGW32__
 
 #include <WinSock2.h>
+// Structure timeval has define in winsock.h, include windows.h for it.
+#include <Windows.h>
 
 NS_CC_BEGIN
 
@@ -120,6 +120,7 @@ NS_CC_END
 
 #undef _WINSOCKAPI_
 #include <winsock2.h>
+#include <Windows.h>
 
 // Conflicted with math.h isnan
 #include <cmath>