[POWERPC] powerpc: PA Semi PWRficient platform support

Base patch for PA6T and PA6T-1682M. This introduces the
arch/powerpc/platform/pasemi directory, together with basic
implementations for various setup.

Much of this was based on other platform code, i.e. Maple, etc.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/platforms/Makefile b/arch/powerpc/platforms/Makefile
index 5cf46dc..e58fa95 100644
--- a/arch/powerpc/platforms/Makefile
+++ b/arch/powerpc/platforms/Makefile
@@ -13,5 +13,6 @@
 obj-$(CONFIG_PPC_PSERIES)	+= pseries/
 obj-$(CONFIG_PPC_ISERIES)	+= iseries/
 obj-$(CONFIG_PPC_MAPLE)		+= maple/
+obj-$(CONFIG_PPC_PASEMI)		+= pasemi/
 obj-$(CONFIG_PPC_CELL)		+= cell/
 obj-$(CONFIG_EMBEDDED6xx)	+= embedded6xx/