charger: allow home button to wake

A squashed commit of the following:

commit 6ce21d726a967b2cc942476758b9ab3851ff39f1
Author: Pawit Pornkitprasan <p.pawit@gmail.com>
Date:   Sun Feb 3 22:21:32 2013 +0700

    charger: do not suspend when handling home

    When using Google's suspend implementation, home press should also wake
    the device from suspend

    Change-Id: I51f3e45c5cb418b0b3718e7223a1336876379043

commit 75a7cf84df719d8cf5cd77093b3f9fee3c09017e
Author: Pawit Pornkitprasan <p.pawit@gmail.com>
Date:   Sat Jul 21 22:09:37 2012 +0700

    charger: allow home button to wake

    On certain devices (e.g. galaxysmtd), the user expects the physical
    home button to be able to wake the device as well as the power button.

    Change-Id: If764f36aba3810dfa5233af8baf0a740b04889e0

Change-Id: I362b227e26bc864a2cad471df799bce2d682ecee