charger: Allow home key on newer devices to wake device

 * On newer devices, the home key button is usually mapped
   to KEY_HOMEPAGE. Allow it to wake the device.

Change-Id: I6423e4c6fb7992c77dc052a9f0aadae1fa8055dd
Remove HAVE_SELINUX guards

Android 4.3, and by extension CM 10.2, default to having SELinux on

Change-Id: Ie7853727102725a75a7d6fa3b3b35b1ffaacd89a
remove init.cm.rc for old merge