[windows] Added missing locks around direct dfb_wm_... calls...
[windows] Added missing locks around direct dfb_wm_... calls...

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