externals: Update cubeb to 616d773

Support for 6 audio channels

Co-Authored-By: David <ognik5377@users.noreply.github.com>
This commit is contained in:
David Marcec
2020-04-30 00:33:02 +10:00
committed by FearlessTobi
parent 4d7487bd34
commit 5832857bc0