[POWERPC] Split several platforms into their respective Kconfig file

Moved pseries, iseries, chrp, prep, maple and pasemi into their respective
arch/powerpc/platform/*/Kconfig files out of arch/powerpc/Kconfig

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig
index a57032c..16e4e40 100644
--- a/arch/powerpc/platforms/pseries/Kconfig
+++ b/arch/powerpc/platforms/pseries/Kconfig
@@ -1,3 +1,13 @@
+config PPC_PSERIES
+	depends on PPC_MULTIPLATFORM && PPC64
+	bool "IBM pSeries & new (POWER5-based) iSeries"
+	select MPIC
+	select PPC_I8259
+	select PPC_RTAS
+	select RTAS_ERROR_LOGGING
+	select PPC_UDBG_16550
+	select PPC_NATIVE
+	default y
 
 config PPC_SPLPAR
 	depends on PPC_PSERIES