handle DIKI_ALT_GR in the switch even if we don't have any matching key code, just to avoid gcc warning

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41489 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/dfb/window.cpp

@@ -862,6 +862,7 @@ static long GetTranslatedKeyCode(DFBInputDeviceKeyIdentifier key_id)
         KEY(DIKI_CONTROL_R,         WXK_CONTROL);
         KEY(DIKI_ALT_L,             WXK_ALT);
         KEY(DIKI_ALT_R,             WXK_ALT);
+        KEY(DIKI_ALT_GR,            0);
         KEY(DIKI_META_L,            0);
         KEY(DIKI_META_R,            0);
         KEY(DIKI_SUPER_L,           0);