[POWERPC] Rename device_is_compatible to of_device_is_compatible

for consistency with other Open Firmware interfaces (and Sparc).

This is just a straight replacement.

This leaves the compatibility define in place.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/drivers/macintosh/windfarm_max6690_sensor.c b/drivers/macintosh/windfarm_max6690_sensor.c
index eaa74af..5f03aab 100644
--- a/drivers/macintosh/windfarm_max6690_sensor.c
+++ b/drivers/macintosh/windfarm_max6690_sensor.c
@@ -131,7 +131,7 @@
 		 */
 		if (!pmac_i2c_match_adapter(dev, adapter))
 			continue;
-		if (!device_is_compatible(dev, "max6690"))
+		if (!of_device_is_compatible(dev, "max6690"))
 			continue;
 		addr = pmac_i2c_get_dev_addr(dev);
 		loc = of_get_property(dev, "hwsensor-location", NULL);