Merge branch 'ramfs' into 'master'

Include ramfs in initfs

See merge request !1233
1 job for master in 11 minutes and 58 seconds (queued for 3 seconds)
Name Stage Failure
img Test
* Failure 404 Not Found
thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Custom { kind: NotFound, error: " not found" }', src/libcore/
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace.
mk/ recipe for target 'build/initfs.tag' failed
make[1]: *** [build/initfs.tag] Error 101
make[1]: Leaving directory '/builds/redox-os/redox'
make: *** [ci-img] Error 2
Makefile:65: recipe for target 'ci-img' failed
ERROR: Job failed: exit code 1