Backport of "audiotestsrc: Initialize all samples in wave=ticks mode" into 1.20
requested to merge tpm/gstreamer:backport-mr-4475-into-1.20-audiotestsrc-ticks-initialize-all-input into 1.20
Backport of !4475 (merged) "audiotestsrc: Initialize all samples in wave=ticks mode".
Commits:
- 6c429a58 audiotestsrc: Initialize all samples in wave=ticks mode