arm/km: replace suenx targets with km_kirkwood

suen3 and suen8 were in first HW version quite different, but
now they are from a u-boot point of view similar. So these
two boards can use the same header file. Other keymile boards
differ only in the usage of the PCI interface. Therefore
a target km_kirkwood_pci was introduced. All targets use
the same header file.

Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
cc: Prafulla Wadaskar <prafulla@marvell.com>
cc: Heiko Schocher <hs@denx.de>
diff --git a/include/configs/mgcoge3un.h b/include/configs/mgcoge3un.h
index 8d1b61f..ac01a31 100644
--- a/include/configs/mgcoge3un.h
+++ b/include/configs/mgcoge3un.h
@@ -76,4 +76,9 @@
 	MVGBE_SET_GMII_SPEED_TO_10_100	|\
 	MVGBE_SET_MII_SPEED_TO_100)
 
+/*
+ * PCIe port not used on mgcoge3un
+ */
+#undef  CONFIG_KIRKWOOD_PCIE_INIT
+
 #endif /* _CONFIG_MGCOGE3UN_H */