Committing after making change to build with poky linux toolchain.

This build now works with our next branch build infrastructure.

Command to Build:

1. Source the environment from the POKY toolchain:

source $KERNELPATH../tools/1.6.2/environment-setup-mips64-nf-poky-linux
unset LDFLAGS CFLAGS CPPFLAGS

2. Build the drivers and wireless tools from the build directory:

cd build
KERNELPATH=/home/sripk/ws/src/next/linux-yocto-3.10 make driver_build

Need to explictly set the ${KERNELPATH} in the command line before the build.

The rootfs with the necessary modules and tools will be built here:
../rootfs-octeon.optbuild/cav_root.tar

Extract the rootfs on the router and insert the Kernel modules in the below
order:

insmod adf.ko
insmod asf.ko
insmod ath_hal.ko
insmod ath_rate_atheros.ko
insmod ath_dfs.ko
insmod ath_dev.ko
insmod umac.ko