sdk: Do not generate bmap for VDI images
VDI images are meant for VirtualBox and having a bmap file along with them is not useful at all as bmaptool does not understand the VDI file format and cannot identify unused blocks.
VDI images are meant for VirtualBox and having a bmap file along with them is not useful at all as bmaptool does not understand the VDI file format and cannot identify unused blocks.