Integrated: 8269131: Update libxml2 to version 2.9.12

[Ambarish Rapte]

On Thu, 1 Jul 2021 15:46:53 GMT, Ambarish Rapte <arapte at openjdk.org> wrote:

> We currently use libxml2 version 2.9.10. It should be updated to latest stable release, which is version 2.9.12.
> The steps to update libxml are documented in UPDATING.txt.

This pull request has now been integrated.

Changeset: 52c076c5
Author:    Ambarish Rapte <arapte at openjdk.org>
URL:       https://git.openjdk.java.net/jfx/commit/52c076c50f3cab17628db4dd2b1b37cb2d6ce92a
Stats:     4134 lines in 62 files changed: 1582 ins; 1362 del; 1190 mod

8269131: Update libxml2 to version 2.9.12

Reviewed-by: kcr, jvos

-------------

PR: https://git.openjdk.java.net/jfx/pull/562