HAVE_FEATURE_OPENCL is included by a common Calc header
and HAVE_FEATURE_DESKTOP is included by a common Writer header,
causing pretty much their full rebuilds if any feature changes.
Change-Id: If29bf78bd4fd70b37981e0826a577777fd255c89
Reviewed-on: https://gerrit.libreoffice.org/80776
Tested-by: Jenkins
Reviewed-by: Tor Lillqvist <tml@collabora.com>