ARM: Remove 'node' argument form arch_adjust_zones()

Since we no longer support discontigmem, node is always zero, so
remove this argument.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 4011e52..4d27208 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -318,7 +318,7 @@
 	 * Adjust the sizes according to any special requirements for
 	 * this machine type.
 	 */
-	arch_adjust_zones(0, zone_size, zhole_size);
+	arch_adjust_zones(zone_size, zhole_size);
 
 	free_area_init_node(0, zone_size, min, zhole_size);
 }