[POWERPC] Fix typo #ifdef -> #ifndef

fpi->cp_command should be overwritten only if CONFIG_PPC_CPM_NEW_BINDING
is NOT set. Otherwise it is already set from the device tree.
Signed-off-by: Jochen Friedrich <jochen@scram.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

drivers/net/fs_enet/mac-scc.c

@@ -158,7 +158,7 @@ static int setup_data(struct net_device *dev)
 {
 	struct fs_enet_private *fep = netdev_priv(dev);
 
-#ifdef CONFIG_PPC_CPM_NEW_BINDING
+#ifndef CONFIG_PPC_CPM_NEW_BINDING
 	struct fs_platform_info *fpi = fep->fpi;
 
 	fep->scc.idx = fs_get_scc_index(fpi->fs_no);