[surfaces] A bit more debug when locking buffers.
[surfaces] A bit more debug when locking buffers.

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