Add fix for Bug 3326 - WidgetPreInstaller.mmp does not have correct USERINCLUDE for widgetinstaller.h
# Default Web Kit International Domain Name Script White List.
Common
Inherited
Arabic
Armenian
Bopomofo
Canadian_Aboriginal
Devanagari
Deseret
Gujarati
Gurmukhi
Hangul
Han
Hebrew
Hiragana
Katakana_Or_Hiragana
Katakana
Latin
Tamil
Thai
Yi