dfbtest_layer: Use DLBM_FRONTONLY.
dfbtest_layer: Use DLBM_FRONTONLY.

deniskropp/DirectFB,sklnet/DirectFB,jcdubois/DirectFB,kaostao/directfb,sklnet/DirectFB,djbclark/directfb-core-DirectFB,lancebaiyouview/DirectFB,jcdubois/DirectFB,lancebaiyouview/DirectFB,djbclark/directfb-core-DirectFB,lancebaiyouview/DirectFB,kaostao/directfb,djbclark/directfb-core-DirectFB,deniskropp/DirectFB,lancebaiyouview/DirectFB,jcdubois/DirectFB,sklnet/DirectFB,deniskropp/DirectFB,deniskropp/DirectFB,djbclark/directfb-core-DirectFB,sklnet/DirectFB,kaostao/directfb