[POWERPC] mv64x60: Remove device tree absolute path references

Replace several device node absolute path lookups in the mv64x60
bootwrapper code with lookups by compatible or device_type
properties.

Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Acked-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/boot/mv64x60_i2c.c b/arch/powerpc/boot/mv64x60_i2c.c
index d085377..52a3212 100644
--- a/arch/powerpc/boot/mv64x60_i2c.c
+++ b/arch/powerpc/boot/mv64x60_i2c.c
@@ -185,7 +185,7 @@
 	u32 v;
 	void *devp;
 
-	devp = finddevice("/mv64x60/i2c");
+	devp = find_node_by_compatible(NULL, "marvell,mv64360-i2c");
 	if (devp == NULL)
 		goto err_out;
 	if (getprop(devp, "virtual-reg", &v, sizeof(v)) != sizeof(v))