kernel: Add USB gadget and net support for 3.4 kernel
kernel: Add USB gadget and net support for 3.8 kernel
kernel: Add rfkill support for 3.4 kernel
kernel: Add various IPv6 options to 3.4 and 3.8 kernels

- privacy enabled
- multiple routing tables
- source address based routing
kernel: Add NFC support for 3.4 kernel
kernel: Add netfilter accounting (NFACCT) support to 3.4 and 3.8 kernels

This is needed by ConnMan routing and statistics support in sessions.