[davinci] Workaround broken DSP cache invalidation function.
[davinci] Workaround broken DSP cache invalidation function.

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