Revert "frandom"

This reverts commit a42ec8b820f3cd000d189c38baf5106f40f6900f.
irq: Set CPU affinity as soon as the irq thread is created
In an embedded target where IRQ affinities are pre-configured during
boot-time (and not modified through /proc/irq/../smp_affinity) during
run-time, the extra latency due to irq_thread_check_affinity can be
avoided during processing of the first interrupt with this patch.
Thoughts?

backported from Linux 3.5+ by faux123
Touch to Wake implementation
Version 1.4.3