[N9H30 Linux] How to build emWin sample code?

[9chuckyoung]

0. Document https://www.nuvoton.com/resource-downlo ... 0721114334
1. Go to OpenNuvoton https://github.com/OpenNuvoton/MPU-Family
2. Download "4. N9H30 Linux development environment"
3. Log in as username: nuvoton and password: user
4. "cd ~/NUC970_Buildroot/"
5. "make"
6. If emWin samples are modified, then "make applications-rebuild"