mako_hotplug: squash all recent commits from this driver from my Hammerhead (Nexus 5) Kernel.

Conflicts:
	arch/arm/kernel/mako_hotplug.c

Change-Id: I4f68a5b5b0ce23fc0a1cfbd177224cf61d186966
Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>