New review comment by tsndqst on void-packages repository

https://github.com/void-linux/void-packages/pull/33556#discussion_r835247572

Comment:
The other base templates such as pinephone-base and pinephonepro-base include a kernel in the depends.  Even though the rockpro64 doesn't require a custom kernel we should include `linux` as a dependency so images created with `rockpro64-base` will automatically have a kernel included.
```suggestion
depends="linux rockpro64-uboot u-boot-menu dracut"
```