Due to incompatibility between the AMD/Xilinx GCC toolchain supplied
with Vivado/Vitis and Buildroot.
This project switched to Buildroot external
Toolchain: Linaro GCC 7.3-2018.05 7.3.1

https://releases.linaro.org/components/toolchain/binaries/7.3-2018.05/arm-linux-gnueabihf/



This toolchain is used to build: Buildroot, Linux and u-boot

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>