QRegExp include cleanup

This patch adds the missing include statements for QRegExp.

Change-Id: I8dc1f257e34b20e93ba4d64da9c7ab8f5f97e88d
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>

src/virtualkeyboard/hunspellworker.cpp

@@ -32,6 +32,7 @@
 #include <QVector>
 #include <QTextCodec>
 #include <QFileInfo>
+#include <QRegExp>
 #include <QTime>
 
 namespace QtVirtualKeyboard {

src/virtualkeyboard/virtualkeyboardsettings.cpp

@@ -33,6 +33,7 @@
 #include <QQmlEngine>
 #include <QFileInfo>
 #include <QDir>
+#include <QRegExp>
 #include <QtCore/private/qobject_p.h>
 
 namespace QtVirtualKeyboard {