/arch/arm/kernel: @motley-git 's Auto Hotplug Enchancements

https://github.com/motley-git/kernel-Nexus4/commit/ee77a973264af049a071af147fee18eb9f88e508

https://github.com/motley-git/kernel-Nexus4/commit/167834b9e219cfbe1d9a891805334ca0271aafe8

https://github.com/motley-git/kernel-Nexus4/commit/059f9be3939a25c45f7af9d721a7f5f81234c5b4