Implement actual loading of a sb1 file to a structure in full
generality. Also implement dumping for debug purpose
Change-Id: I320035ea628719480a79aaccb05dce9a83256927
The STMP36xx series also uses .sb files but with a different
format. The main differences are the encryption and the lack of
sections, making it basically a list of commands: fill, load,
call, jump, switch mode, set sdram settings. Currently only the
sbtoelf has support for the sb1 and can only dump the list of
commands. Actual support for elf creation will come later.
Change-Id: I1f2e0230c91ac64efd0e8430e0c5212098c599fd
