Add "-i" option for reading & displaying firmware info. First it lists
in-firmware partitions ("fwup-ptn"). Then it checks for human
understandable partitions and prints data found in each of them.
This new feature is meant for development & debug purposes.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: maurerr <mariusd84@gmail.com>