cad/zcad: mark qt5 flavor BROKEN
(3104) Compiling glqtcontext.pas
/wrkdirs/usr/ports/cad/zcad/work-qt5/zcad-8b8a693/cad_source/glqtcontext.pas(30,23) Fatal: (10022) Can't find unit qlclopenglwidget used by GLQTContext
Fatal: (1018) Compilation aborted
Reported by: pkg-fallout