Add Makefile targets using dfu-util.
Add Makefile targets using dfu-util.

kwagyeman/openmv,openmv/openmv,iabdalkader/openmv,iabdalkader/openmv,openmv/openmv,openmv/openmv,openmv/openmv,iabdalkader/openmv,kwagyeman/openmv,kwagyeman/openmv,iabdalkader/openmv,kwagyeman/openmv