configs: Enable EROFS support as a module

[ragazenta]

EROFS filesystem stands for Enhanced Read-Only File System. It aims to form a generic read-only filesystem solution for various read-only use cases instead of just focusing on storage space saving without considering any side effects of runtime performance.

... with guaranteed end-to-end performance by using compact layout, transparent file compression and direct access, especially for those embedded devices with limited memory and high-density hosts with numerous containers. (1)

Wouldn't it be a good idea to enable this? Thanks.

[kaysievers]

That would be nice.