[jfx25u] RFR: 8370632: Additional libxslt 1.1.43 fixes

[Hima Bindu Meda]

clean Backport

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Commit messages:
 - Backport 478e1ad43b2feaa4fa1d5be656b78cadf2316ba3

Changes: https://git.openjdk.org/jfx25u/pull/28/files
  Webrev: https://webrevs.openjdk.org/?repo=jfx25u&pr=28&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8370632
  Stats: 215 lines in 3 files changed: 83 ins; 14 del; 118 mod
  Patch: https://git.openjdk.org/jfx25u/pull/28.diff
  Fetch: git fetch https://git.openjdk.org/jfx25u.git pull/28/head:pull/28

PR: https://git.openjdk.org/jfx25u/pull/28