Add sample of arm-linaro-linux-uclibcgnueabi
Regenerate the follow samples by `ct-ng saveconfig`

aarch64-linaro-linux-gnueabi
arm-linaro-linux-gnueabi
arm-linaro-linux-uclibcgnueabi
arm-rpi-linux-gnueabihf
i686-pc-linux-gnu
x86_64-pc-linux-gnu