QTAP expects configurability

[sevki]

currently qtap only expects to see one string Hello, I am Harvey :-)
https://github.com/Harvey-OS/harvey/blob/master/util/src/harvey/cmd/qtap/main.go#L24
but u-root qemu package can be configured to expect more.
It would be great if we can read a file with a Regexp per line and don't rely on hardcoded string literals.

[github-actions]

Issue is outdated