x11/egl: fix compilation warning and error on 32bit machine
x11/egl: fix compilation warning and error on 32bit machine

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