Still problematic; since we only show OpenCL as being available
if it has already been initialized and used.

Change-Id: I5e82a3f778f4f2025408330b6d9da51402d01e79
Reviewed-on: https://gerrit.libreoffice.org/26866Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Michael Meeks <michael.meeks@collabora.com>