direct: Add direct_list_get_last() that just returns the first elements 'prev' pointer.
direct: Add direct_list_get_last() that just returns the first elements 'prev' pointer.

dfbdok/DirectFB1,DirectFB/directfb,sklnet/DirectFB,kaostao/directfb,lancebaiyouview/DirectFB,DirectFB/directfb,lancebaiyouview/DirectFB,mtsekm/test,kevleyski/directfb,Distrotech/DirectFB,kevleyski/directfb,lancebaiyouview/DirectFB,djbclark/directfb-core-DirectFB,kevleyski/DirectFB-1,sklnet/DirectFB,sklnet/DirectFB,jcdubois/DirectFB,kevleyski/DirectFB-1,kaostao/directfb,djbclark/directfb-core-DirectFB,Distrotech/DirectFB,djbclark/directfb-core-DirectFB,dfbdok/DirectFB1,djbclark/directfb-core-DirectFB,kevleyski/directfb,DirectFB/directfb,jcdubois/DirectFB,kaostao/directfb,sklnet/DirectFB,deniskropp/DirectFB,kevleyski/DirectFB-1,kevleyski/directfb,jcdubois/DirectFB,lancebaiyouview/DirectFB,dfbdok/DirectFB1,mtsekm/test,Distrotech/DirectFB,deniskropp/DirectFB,deniskropp/DirectFB,kevleyski/DirectFB-1,mtsekm/test,deniskropp/DirectFB