[Builtin Fusion] Use fusion_skirmish_wait() instead of usleep() in fusion_ref_zerolock().
[Builtin Fusion]
Use fusion_skirmish_wait() instead of usleep() in fusion_ref_zerolock().

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