of: unify phandle name in struct device_node

In struct device_node, the phandle is named 'linux_phandle' for PowerPC
and MicroBlaze, and 'node' for SPARC.  There is no good reason for the
difference, it is just an artifact of the code diverging over a couple
of years.  This patch renames both to simply .phandle.

Note: the .node also existed in PowerPC/MicroBlaze, but the only user
seems to be arch/powerpc/platforms/powermac/pfunc_core.c.  It doesn't
look like the assignment between .linux_phandle and .node is
significantly different enough to warrant the separate code paths
unless ibm,phandle properties actually appear in Apple device trees.

I think it is safe to eliminate the old .node property and use
phandle everywhere.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: David S. Miller <davem@davemloft.net>
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

arch/microblaze/kernel/prom.c

@@ -342,7 +342,7 @@ struct device_node *of_find_node_by_phandle(phandle handle)
 
 	read_lock(&devtree_lock);
 	for (np = allnodes; np != NULL; np = np->allnext)
-		if (np->linux_phandle == handle)
+		if (np->phandle == handle)
 			break;
 	of_node_get(np);
 	read_unlock(&devtree_lock);