Revert "ARM: mach-ux500: move suspend hotplugging to separate hotplug driver"

This reverts commit 4ff6a61a3b4b4617cd1ae6f8e7c4ddf3b50f19e9.

Conflicts:
	arch/arm/mach-ux500/u8500_hotplug.c
	drivers/gpu/mali/mali400ko/driver/src/devicedrv/mali/arch

	modified:   arch/arm/mach-ux500/Makefile
	modified:   drivers/cpufreq/cpufreq_interactive.c

Change-Id: Ida1428c218cda5f1ec22ee6b24f5bd8608d83189