sync.profile refers to nonexistent directory: cglconvenience

Exporting src packages are broken because of this issue at least in '5.10' :

Huh, directory qtbase/src/platformsupport/cglconvenience cannot be opened. at syncqt.pl line 635.

This change appears to introduce this Error: ea913750b8793e1e518bd0eabc338e557df5ee6c

"QtCglSupport" => "$basedir/src/platformsupport/cglconvenience",

Contents in that directory is:

qtbase/src/platformsupport/

accessibility/
clipboard/
devicediscovery/
edid/
eglconvenience/
eventdispatchers/
fbconvenience/
fontdatabases/
glxconvenience/
graphics/
input/
kmsconvenience/
linuxaccessibility/
platformcompositor/
platformsupport.pro
services/
themes/
vkconvenience/