Fix compilation of IOS Simulator debugging on windows.

Change-Id: I57dc9297c89b193dbcb7dd9c96ff6d6118ce2191
Reviewed-by: Fawzi Mohamed <fawzi.mohamed@digia.com>

src/plugins/ios/iosdebugsupport.cpp

@@ -49,8 +49,12 @@
 #include <QTcpServer>
 
 #include <stdio.h>
-#include <unistd.h>
 #include <fcntl.h>
+#ifdef Q_OS_UNIX
+#include <unistd.h>
+#else
+#include <io.h>
+#endif
 
 using namespace Debugger;
 using namespace ProjectExplorer;