merge: Currency merge with upstream hardknott branch#6

Merged

amstewart merged 3 commits intoni:nilrt/master/hardknottfrom

gratian:dev/nilrt/master/hardknott-upstream-merge

May 2, 2022

Commits on Apr 3, 2022

gnuradio_git.bb: Bump rev to 3.9.6.0-rc1 for testing.
balister
committed

Commits on Apr 11, 2022

gnuradio_git.bb: Update to 3.9.6.0.
balister
committed

Commits on Apr 21, 2022

Merge remote-tracking branch 'upstream/hardknott' into nilrt/master/hardknott
gratian
committed