stm32mp: stm32prog: add MTD devices support

Add support of MTD device (DFU_MTD backend) for
NOR, NAND or SPI-NAND target.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
5 files changed