[SPARC64]: Use machine description and OBP properly for cpu probing.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/asm-sparc64/prom.h b/include/asm-sparc64/prom.h
index ddad5f9..b4df304 100644
--- a/include/asm-sparc64/prom.h
+++ b/include/asm-sparc64/prom.h
@@ -90,6 +90,7 @@
 	const char *type, const char *compat);
 extern struct device_node *of_find_node_by_path(const char *path);
 extern struct device_node *of_find_node_by_phandle(phandle handle);
+extern struct device_node *of_find_node_by_cpuid(int cpuid);
 extern struct device_node *of_get_parent(const struct device_node *node);
 extern struct device_node *of_get_next_child(const struct device_node *node,
 					     struct device_node *prev);