[POWERPC] 4xx Kconfig cleanup

Remove some leftover cruft in the 40x Kconfig file.  Also make sure we
select WANT_DEVICE_TREE for 40x.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>

arch/powerpc/platforms/40x/Kconfig

@@ -1,16 +1,3 @@
-config 4xx
-	bool
-	depends on 40x || 44x
-	default y
-
-config BOOKE
-	bool
-	depends on 44x
-	default y
-
-menu "AMCC 40x options"
-	depends on 40x
-
 #config BUBINGA
 #	bool "Bubinga"
 #	depends on 40x
@@ -82,8 +69,6 @@ menu "AMCC 40x options"
 #	help
 #	  This option enables support for the Xilinx ML300 evaluation board.
 
-endmenu
-
 # 40x specific CPU modules, selected based on the board above.
 config NP405H
 	bool
@@ -126,68 +111,6 @@ config IBM405_ERR77
 config IBM405_ERR51
 	bool
 
-menu "AMCC 44x options"
-	depends on 44x
-
-#config BAMBOO
-#	bool "Bamboo"
-#	depends on 44x
-#	default n
-#	select 440EP
-#	help
-#	  This option enables support for the IBM PPC440EP evaluation board.
-
-config EBONY
-	bool "Ebony"
-	depends on 44x
-	default y
-	select 440GP
-	help
-	  This option enables support for the IBM PPC440GP evaluation board.
-
-#config LUAN
-#	bool "Luan"
-#	depends on 44x
-#	default n
-#	select 440SP
-#	help
-#	  This option enables support for the IBM PPC440SP evaluation board.
-
-#config OCOTEA
-#	bool "Ocotea"
-#	depends on 44x
-#	default n
-#	select 440GX
-#	help
-#	  This option enables support for the IBM PPC440GX evaluation board.
-
-endmenu
-
-# 44x specific CPU modules, selected based on the board above.
-config 440EP
-	bool
-	select PPC_FPU
-	select IBM440EP_ERR42
-
-config 440GP
-	bool
-	select IBM_NEW_EMAC_ZMII
-
-config 440GX
-	bool
-
-config 440SP
-	bool
-
-config 440A
-	bool
-	depends on 440GX
-	default y
-
-# 44x errata/workaround config symbols, selected by the CPU models above
-config IBM440EP_ERR42
-	bool
-
 #config XILINX_OCP
 #	bool
 #	depends on XILINX_ML300

arch/powerpc/platforms/Kconfig.cputype

@@ -40,6 +40,7 @@ config PPC_8xx
 config 40x
 	bool "AMCC 40x"
 	select PPC_DCR_NATIVE
+	select WANT_DEVICE_TREE
 
 config 44x
 	bool "AMCC 44x"