Kernel prepatch 5.16-rc1

The 5.16-rc1 kernel prepatch is out and themerge window is closed for this cycle.

Anyway, it's not a huge release, although it's also not aremarkably small one like 5.15 was (ok, "remarkably small" isrelative, when even such small releases have 10k+commits).. There's a bit of everything in here, and you can look tothe appended mergelog for some kind of flavor, but I guess thefolio work is worth mentioning, since it's an unusually core thingthat we don't tend to see most releases.