dt: reform for_each_property to for_each_property_of_node

Make this macro easier to use(do not need to pass properties, a node is
enough), also change to a more sensible name as for_each_child_of_node.
Signed-off-by: NDong Aisheng <dong.aisheng@linaro.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: NRob Herring <rob.herring@calxeda.com>

drivers/of/base.c

@@ -1157,7 +1157,7 @@ void of_alias_scan(void * (*dt_alloc)(u64 size, u64 align))
 	if (!of_aliases)
 		return;
 
-	for_each_property(pp, of_aliases->properties) {
+	for_each_property_of_node(of_aliases, pp) {
 		const char *start = pp->name;
 		const char *end = start + strlen(start);
 		struct device_node *np;

include/linux/of.h

@@ -219,8 +219,8 @@ extern int of_device_is_available(const struct device_node *device);
 extern const void *of_get_property(const struct device_node *node,
 				const char *name,
 				int *lenp);
-#define for_each_property(pp, properties) \
-	for (pp = properties; pp != NULL; pp = pp->next)
+#define for_each_property_of_node(dn, pp) \
+	for (pp = dn->properties; pp != NULL; pp = pp->next)
 
 extern int of_n_addr_cells(struct device_node *np);
 extern int of_n_size_cells(struct device_node *np);