Backport of "plugin: add Apache 2 license to list of known licenses" into 1.20
requested to merge tpm/gstreamer:backport-mr-2514-into-1.20-add-apache2-as-acceptable-license into 1.20
Backport of !2514 (merged) "plugin: add Apache 2 license to list of known licenses".
Commits:
- d71a6bf4 plugin: add Apache 2 license to known licenses