The problem is due to 0028-add-support-for-linux-5.6.patch having many of a/src/src/... instead of a/src/...
Fixing that patch solves this for me.
The problem is due to 0028-add- support- for-linux- 5.6.patch having many of a/src/src/... instead of a/src/...
Fixing that patch solves this for me.