馃敡 Fix Scenic Station config to apply JACK max_number_of_channels
Fix jacksrc/jacksink max_number_of_channels to 18 for Scenic Station custom configuration.
Ref. https://jira.sat.qc.ca/browse/SCENIC-5219, https://gitlab.com/sat-mtl/tools/scenic/scenic-station/-/merge_requests/205
Edited by Olivier Gauthier