RFR: JDK-8311938: Add default cups include location for configure on AIX

[Christoph Langer]

On Tue, 1 Aug 2023 07:28:02 GMT, Andreas Steiner <duke at openjdk.org> wrote:

> Add the default include location(/opt/freeware/include/) for cups on AIX. With this set the additional configure parameter --with-cups-include can be removed, which was needed on AIX.

I think the check for the cups default location on AIX fits better in the next section, after line 70/79 `# Are the cups headers installed in the default /usr/include location?`

But other than that, looks good to me.

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Marked as reviewed by clanger (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/15100#pullrequestreview-1556370701