Add a new software source, it prompts that there is no software package

[kongjun0]

Add a new software source, it prompts that there is no software package, and the nanopi official firmware is normal。Already executed sudo apt update.

please test：curl -1sLf
'https://dl.cloudsmith.io/public/tvheadend/tvheadend/setup.deb.sh'
| sudo -E bash

sudo apt update

sudo apt install tvheadend

Also can this driver be integrated：torvalds/linux@c4d8454?diff=unified
dib0700.zip