Max screen off frequency and shut down cores while screen is off

Conflicts:

	arch/arm/mach-msm/Kconfig
	arch/arm/mach-msm/cpufreq.c

Change-Id: Icba7ccf78110fed88008d40676331a6488206b17
Change msm-sleeper to use lcd-notifier
Add sysfs entry for max screen off frequency

Conflicts:

	arch/arm/mach-msm/cpufreq.c

Change-Id: I36eaac627b8ba80ba4aebef9cbc3fc1a98a98529
Change default max screen off frequency to 1190400
derp

Change-Id: Iabc082ca2406fd8a5a636574d9c381d8f7952265