RFR: 8325731: Installation instructions for Debian/Ubuntu don't mention autoconf

[Magnus Ihse Bursie]

On Tue, 13 Feb 2024 11:35:32 GMT, Johannes Bechberger <jbechberger at openjdk.org> wrote:

> So I added autoconf besides build-essential. With both packages, `bash configure` is runnable.

Thanks for fixing!

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Marked as reviewed by ihse (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/17826#pullrequestreview-1877809447