RFR: 8346150: Jib dependency on autoconf missing for 'docs' profile

[Erik Joelsson]

The 'docs' jib profile is missing the dependency on autoconf. 

This only applies to builds produced by Oracle.

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Commit messages:
 - JDK-8346150

Changes: https://git.openjdk.org/jdk/pull/22724/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22724&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8346150
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/22724.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22724/head:pull/22724

PR: https://git.openjdk.org/jdk/pull/22724