[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/pasemi/Kconfig b/arch/powerpc/platforms/pasemi/Kconfig
index 68dc529..64e5525 100644
--- a/arch/powerpc/platforms/pasemi/Kconfig
+++ b/arch/powerpc/platforms/pasemi/Kconfig
@@ -1,3 +1,15 @@
+config PPC_PASEMI
+	depends on PPC_MULTIPLATFORM && PPC64
+	bool "PA Semi SoC-based platforms"
+	default n
+	select MPIC
+	select PPC_UDBG_16550
+	select GENERIC_TBSYNC
+	select PPC_NATIVE
+	help
+	  This option enables support for PA Semi's PWRficient line
+	  of SoC processors, including PA6T-1682M
+
 menu "PA Semi PWRficient options"
 	depends on PPC_PASEMI