CG0	?
CG1	BP OS
CG2	Flex
CG3	DSP code
CG17	?
CG18	RSA signature

CG32	keRnel
CG33	cramfs
CG34	vfm
CG35	cramfs starting byte 56 (language pack?) / TrueFFS scrambled
CG36	cramfs (configs)
CG37	gzip (logo)
CG38	vfat partition
CG39	?

RDL3	ram downloader for AP
RDL0	ram downloader for BP ? (includes sig checking)