[POWERPC] Split 52xx platforms into their own Kconfig file

Cleaning up arch/powerpc/Kconfig platform support.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

arch/powerpc/Kconfig

@@ -432,39 +432,7 @@ config PPC_CHRP
 	select PPC_NATIVE
 	default y
 
-config PPC_MPC52xx
-	bool
-	default n
-
-config PPC_MPC5200
-	bool
-	select PPC_MPC52xx
-	default n
-
-config PPC_MPC5200_BUGFIX
-	bool "MPC5200 (L25R) bugfix support"
-	depends on PPC_MPC5200
-	default n
-	help
-	  Enable workarounds for original MPC5200 errata.  This is not required
-	  for MPC5200B based boards.
-
-	  It is safe to say 'Y' here
-
-config PPC_EFIKA
-	bool "bPlan Efika 5k2. MPC5200B based computer"
-	depends on PPC_MULTIPLATFORM && PPC32
-	select PPC_RTAS
-	select RTAS_PROC
-	select PPC_MPC52xx
-	select PPC_NATIVE
-	default n
-
-config PPC_LITE5200
-	bool "Freescale Lite5200 Eval Board"
-	depends on PPC_MULTIPLATFORM && PPC32
-	select PPC_MPC5200
-	default n
+source "arch/powerpc/platforms/52xx/Kconfig"
 
 config PPC_PMAC
 	bool "Apple PowerMac based machines"

arch/powerpc/platforms/52xx/Kconfig

+config PPC_MPC52xx
+	bool
+	default n
+
+config PPC_MPC5200
+	bool
+	select PPC_MPC52xx
+	default n
+
+config PPC_MPC5200_BUGFIX
+	bool "MPC5200 (L25R) bugfix support"
+	depends on PPC_MPC5200
+	default n
+	help
+	  Enable workarounds for original MPC5200 errata.  This is not required
+	  for MPC5200B based boards.
+
+	  It is safe to say 'Y' here
+
+config PPC_EFIKA
+	bool "bPlan Efika 5k2. MPC5200B based computer"
+	depends on PPC_MULTIPLATFORM && PPC32
+	select PPC_RTAS
+	select RTAS_PROC
+	select PPC_MPC52xx
+	select PPC_NATIVE
+	default n
+
+config PPC_LITE5200
+	bool "Freescale Lite5200 Eval Board"
+	depends on PPC_MULTIPLATFORM && PPC32
+	select PPC_MPC5200
+	default n
+
+