x86/Voyager: remove ARCH_SUSPEND_POSSIBLE Kconfig quirk

Voyager has this Kconfig quirk for suspend/resume:

 config ARCH_SUSPEND_POSSIBLE
 	def_bool y
 	depends on !X86_VOYAGER

The proper mechanism to not suspend on a piece of hardware to disable
CONFIG_SUSPEND. Remove the quirk.

Signed-off-by: Ingo Molnar <mingo@elte.hu>