drivers base/topology: Convert to hotplug state machine

Install the callbacks via the state machine and let the core invoke
the callbacks on the already online CPUs. No functional change

Change-Id: I020e5d20d699bf5597927449545e90454481a5ec
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: rt@linutronix.de
Link: http://lkml.kernel.org/r/20161103145021.28528-14-bigeasy@linutronix.de


Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Git-commit: 38643a0e691ec947d311eb2db011b289cf95014e
Git-repo: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git


Signed-off-by: Channagoud Kadabi <ckadabi@codeaurora.org>