Windows: fix depreceation warnings

- winsock2.h should be included before windows.h
- QProcess::execute('name') -> QProcess::execute('name', args);

src/downloadthread.cpp

@@ -153,7 +153,7 @@ bool DownloadThread::_openAndPrepareDevice()
             qDebug() << "Removing partition table from Windows drive #" << _nr << "(" << _filename << ")";
 
             QProcess proc;
-            proc.start("diskpart");
+            proc.start("diskpart", QStringList());
             proc.waitForStarted();
             proc.write("select disk "+_nr+"\r\n"
                             "clean\r\n"

src/downloadthread.h

@@ -6,6 +6,10 @@
  * Copyright (C) 2020 Raspberry Pi Ltd
  */
 
+#ifdef _WIN32
+#include <winsock2.h>
+#endif
+
 #include <QString>
 #include <QThread>
 #include <QFile>

src/driveformatthread.cpp

@@ -48,7 +48,7 @@ void DriveFormatThread::run()
                 "select partition 1\r\n"
                 "set id=0e\r\n"
                 "assign\r\n";
-        proc.start("diskpart");
+        proc.start("diskpart", QStringList());
         proc.waitForStarted();
         proc.write(diskpartCmds);
         proc.closeWriteChannel();

src/imagewriter.cpp

@@ -3,9 +3,9 @@
  * Copyright (C) 2020 Raspberry Pi Ltd
  */
 
+#include "downloadextractthread.h"
 #include "imagewriter.h"
 #include "drivelistitem.h"
-#include "downloadextractthread.h"
 #include "dependencies/drivelist/src/drivelist.hpp"
 #include "dependencies/sha256crypt/sha256crypt.h"
 #include "driveformatthread.h"