Added powerpc variant selection

Config.in

@@ -295,7 +295,65 @@ config BR2_ia64_itanium2
 	bool "itanium 2"
 endchoice
 
-
+choice
+	prompt "Target Architecture Variant"
+	depends BR2_powerpc
+	default BR2_generic_powerpc
+	help
+	  Specific CPU variant to use
+config BR2_generic_powerpc
+	bool "generic"
+config BR2_powerpc_401
+	bool "401"
+config BR2_powerpc_403
+	bool "403"
+config BR2_powerpc_405
+	bool "405"
+config BR2_powerpc_405fp
+	bool "405 with FPU"
+config BR2_powerpc_440
+	bool "440"
+config BR2_powerpc_440fp
+	bool "440 with FPU"
+config BR2_powerpc_505
+	bool "505"
+config BR2_powerpc_601
+	bool "601"
+config BR2_powerpc_602
+	bool "602"
+config BR2_powerpc_603
+	bool "603"
+config BR2_powerpc_603e
+	bool "603e"
+config BR2_powerpc_604
+	bool "604"
+config BR2_powerpc_604e
+	bool "604e"
+config BR2_powerpc_620
+	bool "620"
+config BR2_powerpc_630
+	bool "630"
+config BR2_powerpc_740
+	bool "740"
+config BR2_powerpc_7400
+	bool "7400"
+config BR2_powerpc_7450
+	bool "7450"
+config BR2_powerpc_750
+	bool "750"
+config BR2_powerpc_801
+	bool "801"
+config BR2_powerpc_821
+	bool "821"
+config BR2_powerpc_823
+	bool "823"
+config BR2_powerpc_860
+	bool "860"
+config BR2_powerpc_970
+	bool "970"
+config BR2_powerpc_8540
+	bool "8540"
+endchoice
 
 config BR2_ARCH
 	string