More Kindle startup tweaks on legacy devices
More Kindle startup tweaks on legacy devices

Don't try to setup iptables if it's not there (K2/DX/DXG).
Note that we'll do it on the K3, but it'll be useless there (no wifi).

Frenzie/koreader,ashhher3/koreader,frankyifei/koreader,apletnev/koreader,Markismus/koreader,poire-z/koreader,NickSavage/koreader,chihyang/koreader,Hzj-jie/koreader,NiLuJe/koreader,NiLuJe/koreader,poire-z/koreader,mwoz123/koreader,robert00s/koreader,mihailim/koreader,koreader/koreader,chrox/koreader,Frenzie/koreader,koreader/koreader,houqp/koreader,lgeek/koreader,pazos/koreader