Kernel prepatch 4.9-rc5

The 4.9-rc5 kernel prepatch is out. Linussays: "Things have definitely gotten smaller, so a normal releaseschedule (with rc7 being the last one) is still looking possible despitethe large size of 4.9. But let's see how things work out over the nextcouple of weeks. In the meantime, there's a lot of normal fixes in here,and we just need more testing."