[SPARC]: Add of_n_{addr,size}_cells().

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/asm-sparc/prom.h b/include/asm-sparc/prom.h
index f9cf44c..7032d02 100644
--- a/include/asm-sparc/prom.h
+++ b/include/asm-sparc/prom.h
@@ -101,6 +101,8 @@
 extern int of_getintprop_default(struct device_node *np,
 				 const char *name,
 				 int def);
+extern int of_n_addr_cells(struct device_node *np);
+extern int of_n_size_cells(struct device_node *np);
 
 extern void prom_build_devicetree(void);