psp: call sync() in direct_sync() implementation
psp: call sync() in direct_sync() implementation

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