various Kconfig cleanup and old platform build code removal

	# select ARCH_REQUIRE_GPIOLIB

	# select HAVE_CLK

	# select IRQ_PER_CPU

	select HAVE_IRQ_WORK

	# select GENERIC_PENDING_IRQ if SMP

	select HAVE_IRQ_WORK

	select GENERIC_ATOMIC64

	select HAVE_PERF_EVENTS

	select HAVE_GENERIC_HARDIRQS

	select NO_IOPORT

	select GENERIC_IOMAP

	select GENERIC_SMP_IDLE_THREAD

	# mostly generic routines, with some accelerated ones

	select STACKTRACE_SUPPORT

	---help---

	  Qualcomm Hexagon is a processor architecture designed for high

	  performance and low power across a wide variety of applications.

config GENERIC_IRQ_PROBE

	def_bool y

#config ZONE_DMA

#	bool

#	default y

config HAS_DMA

	bool

	select HAVE_DMA_ATTRS

	default y

config NEED_SG_DMA_LENGTH

	def_bool y

	def_bool y

	depends on BUG

config BUG

	def_bool y

menu "Machine selection"

choice

	prompt "System type"

	default HEXAGON_ARCH_V2

	default HEXAGON_COMET

config HEXAGON_COMET

	bool "Comet Board"

source "kernel/time/Kconfig"

config GENERIC_GPIO

	bool "Generic GPIO support"

	default n

	def_bool n

endmenu

core-y += arch/hexagon/kernel/ \

	arch/hexagon/mm/ \

	arch/hexagon/lib/

#	arch/hexagon/platform/common/

#

#core-$(CONFIG_HEXAGON_COMET)		+= arch/hexagon/platform/comet/

#machine-$(CONFIG_HEXAGON_COMET)		:= comet