powerpc/pasemi: Add Nemo motherboard config option.

Add config option for the Nemo motherboard used in the Amigaone X1000.
This is a custom PASemi board with an AMD SB600 southbridge, and needs
some patches to it device tree. This option will be used to build these
into the kernel
Signed-off-by: Darren Stevens <darren@stevens-zone.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/platforms/pasemi/Kconfig

@@ -14,6 +14,16 @@ config PPC_PASEMI
 menu "PA Semi PWRficient options"
 	depends on PPC_PASEMI
 
+config PPC_PASEMI_NEMO
+	bool "Nemo motherboard Support"
+	depends on PPC_PASEMI
+	select PPC_I8259
+	help
+	  This option enables support for the 'Nemo' motherboard
+	  used in A-Eons's Amigaone X1000. This consists of some
+	  device tree patches and workarounds for the SB600 South
+	  Bridge that provides SATA/USB/Audio.
+
 config PPC_PASEMI_IOMMU
 	bool "PA Semi IOMMU support"
 	depends on PPC_PASEMI