Closed issue by Gottox on void-packages repository

https://github.com/void-linux/void-packages/issues/4273

Description:
Currently we're shipping dozens of different kernel configs with overlapping features. It would be nice if we could split them into fragments (e.g. arch-specific, platform-specific, and features) so we can enable features of fix platform configuration errors without editing multiple files. Linux ships a "merge_config.sh" script that compiles a config file from multiple fragments.

Resource:
 * https://www.youtube.com/watch?v=J8zxekwYMDY&t=8s
 * [scripts/kconfig/merge_config.sh](https://github.com/torvalds/linux/blob/master/scripts/kconfig/merge_config.sh)