shortcutsettings.h(84) : error C2536: 'Core::Internal::ShortcutButton::Core::Internal::ShortcutButton::m_key' : cannot specify explicit initializer for arrays

Change-Id: I8df6f788cd56c75b3fc71b8349a1c77139175460
Reviewed-by: Alessandro Portale <alessandro.portale@theqtcompany.com>