Add cross compilation support for A311D SoC platform. A prebuilt-sdk
for aarch64 and Linux Kernel version 4.9 is provided.
basel build --config A311D //samples/lenet:lenet_asymu8_cc
Signed-off-by: Jiang Bo <bo.jiang@verisilicon.com>
Signed-off-by: Kainan Cha <kainan.cha@verisilicon.com>