Compile bcm_nat as module
Many users have >100Mbps WAN speed. BCM_NAT can give us ~30% speed-up WAN->LAN.
BW Limiter will not works when this module is loaded.
If we enable QoS then bcm_nat will be disabled.
If someone need a higher WAN speed and doesn`t use BW Limiter/QoS, he can enable Broadcom FastNAT:
modprobe bcm_nat
BTW this module works only with K26RT and K26RT-N branches. RT-AC doesn`t support bcm_nat for now.
This commit add also new router option called CTF (default n). Tomato is not compatible with CTF module but we still have CTF on/off checkbox in GUI.
If CTF is not defined then remove CTF checkbox from GUI.