Moving `QDB_PORT` to `generic/all`?

Development
1

In the default config, QDB_PORT is defined in /etc/eos/config/fst/fst, and …/qdb/qdb:

misc/etc/eos/config/fst/fst
     9: QDB_PORT=7777
misc/etc/eos/config/qdb/qdb
     9: QDB_PORT=7777

Could one move this to …/generic/all?

…/mgm/mgm’s mgmofs.qdbcluster could also then use :${QDB_PORT}.