plat-orion: make mv643xx_eth available for all Orion families

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Reviewed-by: Tzachi Perelstein <tzachi@marvell.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Nicolas Pitre <nico@marvell.com>

drivers/net/Kconfig

@@ -2415,7 +2415,7 @@ config UGETH_TX_ON_DEMAND
 
 config MV643XX_ETH
 	tristate "Marvell Discovery (643XX) and Orion ethernet support"
-	depends on MV64360 || MV64X60 || (PPC_MULTIPLATFORM && PPC32) || ARCH_ORION
+	depends on MV64360 || MV64X60 || (PPC_MULTIPLATFORM && PPC32) || PLAT_ORION
 	select MII
 	help
 	  This driver supports the gigabit ethernet MACs in the