You have to make this repo avaible in your cm-build-system under kernel/mediatek/mt6582/.
Enable these lines in device/mediatek/mt6582/BoardConfig.mk: #TARGET_KERNEL_CONFIG := mt6582_defconfig #TARGET_KERNEL_SOURCE := kernel/mediatek/mt6582/kernel
by remove # in begin.
To start the build-progress, you can do
mka bootimage