stm32mp: stm32prog: add support of UUID for FIP partition

Add support of UUID for FIP parttion, required by Firmware update
support in TF-A:
- UUID TYPE for FIP partition: 19d5df83-11b0-457b-be2c-7559c13142a5
- "fip-a" partition UUID: 4fd84c93-54ef-463f-a7ef-ae25ff887087
- "fip-b" partition UUID: 09c54952-d5bf-45af-acee-335303766fb3

This check is done with a new partition type "FIP" associated
at the FIP UUID.

The A/B partition UUID is detected by the partition name:
"fip-a", "fip-b".

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