netdev: drop CONFIG_PPC_MERGE from Kconfig

Now that arch/ppc is dead CONFIG_PPC_MERGE is always defined for all
powerpc platforms so we don't need to depend on it.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Cc: David Gibson <david@gibson.dropbear.id.au>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

drivers/net/Kconfig

@@ -1813,7 +1813,7 @@ config FEC2
 
 config FEC_MPC52xx
 	tristate "MPC52xx FEC driver"
-	depends on PPC_MERGE && PPC_MPC52xx && PPC_BESTCOMM_FEC
+	depends on PPC_MPC52xx && PPC_BESTCOMM_FEC
 	select CRC32
 	select PHYLIB
 	---help---

drivers/net/ibm_newemac/Kconfig

 config IBM_NEW_EMAC
 	tristate "IBM EMAC Ethernet support"
-	depends on PPC_DCR && PPC_MERGE
+	depends on PPC_DCR
 	select CRC32
 	help
 	  This driver supports the IBM EMAC family of Ethernet controllers