Specify the new "firmware" partition format for Netgear WNDR3700
and WNDR3700v2 similarly as ffd082aa did for WNDR3800, the third
device in the family.
Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>
Add support for WNDR3700 and WNDR3700v2.
They share most things with WNDR3800.
Only device IDs and partition structure needs to be set.
Note: WNDR3700 (v1) has no NETGEAR_HW_ID, but has
also the NA version of the factory image.
Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>