Previously, tplink_pharos_check_image() would accept any image with ELF
magic and only non-printable data in the support-list, as in this case the
while-read loop would not run at all. Add the new support-list offset and
ensure an image is only accepted when the model string is actually found.
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
5bfb344106