direct: use non-recursive mutex for interfaces lock
direct: use non-recursive mutex for interfaces lock

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