add new uboot-sdcard.sh shell script and backup original create-sdcard.sh i...

Guo Wenxue

2020-06-27 08a6c1c118d47abb9d10fb5c70b1cb3092505715

linux-bsp/tarballs/linux-3.2.0.tar.xz does not exist in tree c1be9fa761381a75a66c09c184c6fac5600a6c30