Fixed wrong assertions in dfb_region_from_rectangle().
Fixed wrong assertions in dfb_region_from_rectangle().

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