* Add ODROID-N2+ support
Add ODROID-N2+ support with the new SoC revision c. Extend the U-Boot
script: Assume ODROID-N2 if the SoC revision is "a" (there are only "a"
revision SoCs on ODROID N2) and assume N2+ otherwise.
Currently using overclock mode as proposed in the upstream kernel patches.
* Update hassos-hook.sh
Co-authored-by: Pascal Vizeli <pascal.vizeli@syshack.ch>