x11: Put dfb_surface_flip() call back.
x11: Put dfb_surface_flip() call back.

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