Compile kernel on BananaPI

Requires SD Card with >=4GB:

    apt-get install git build-essential libncurses5-dev u-boot-tools uboot-mkimage
    cd ~
    git clone https://github.com/LeMaker/linux-bananapi.git --depth 1
    cd linux-bananapi
    make sun7i_defconfig
    make menuconfig
    make -j2 uImage modules
    make modules_install
    mount /dev/mmcblk0p1 /boot
    cp arch/arm/boot/uImage /boot
    reboot