Build instructions (for otter):

cd <kernel source dir>
export PATH=<path_to_this_repo>/bin:$PATH

# otter needs external wlan and sgx moduiles
# set CM_ROOT to the CM10.1 root directory
export CM_ROOT=/u01/dev/android/sgt7/cm10.1

export LOCALVERSION="-$(date +%Y%m%d-%H%M)"
build.sh otter otter_android_defconfig /u01/dev/android/git/toolchains/linaro/linaro-4.7-2013.02
build-zip.sh otter