Pashto uses Arabic script and is written right to left

QLocale::textDirection() was missing Pashto as a
right to left language.

Change-Id: I1623abf711597a26f283a86708dc756696790b7d
Reviewed-by: Lars Knoll
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>

src/corelib/tools/qlocale.cpp

@@ -2147,6 +2147,7 @@ Qt::LayoutDirection QLocale::textDirection() const
     if (lang == QLocale::Arabic ||
         lang == QLocale::Hebrew ||
         lang == QLocale::Persian ||
+        lang == QLocale::Pashto ||
         lang == QLocale::Urdu ||
         lang == QLocale::Syriac ||
         lang == QLocale::Divehi)