cbfstool: Use cbfs_image api for "add" command.

The "add" command is compatible with all legacy usage. Also, to support
platforms without top-aligned address, all address-type params (-b, -H, -l) can
now be ROM offset (address < 0x8000000) or x86 top-aligned address (address >
0x80000000).

Example:
	cbfstool coreboot.rom add -f config -n config -t raw -b 0x2000
	cbfstool coreboot.rom add -f stage -n newstage -b 0xffffd1c0

Verified boot-able on both ARM(snow) and x86(QEMU) system.

Change-Id: I485e4e88b5e269494a4b138e0a83f793ffc5a084
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: http://review.coreboot.org/2216
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
3 files changed