of/device: Replace of_device with platform_device in includes and core code

of_device is currently just an #define alias to platform_device until it
gets removed entirely.  This patch removes references to it from the
include directories and the core drivers/of code.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/of_device.h b/include/linux/of_device.h
index 0f19119..e11a0be 100644
--- a/include/linux/of_device.h
+++ b/include/linux/of_device.h
@@ -39,14 +39,14 @@
 	return of_match_device(drv->of_match_table, dev) != NULL;
 }
 
-extern struct of_device *of_dev_get(struct of_device *dev);
-extern void of_dev_put(struct of_device *dev);
+extern struct platform_device *of_dev_get(struct platform_device *dev);
+extern void of_dev_put(struct platform_device *dev);
 
-extern int of_device_register(struct of_device *ofdev);
-extern void of_device_unregister(struct of_device *ofdev);
+extern int of_device_register(struct platform_device *ofdev);
+extern void of_device_unregister(struct platform_device *ofdev);
 extern void of_release_dev(struct device *dev);
 
-static inline void of_device_free(struct of_device *dev)
+static inline void of_device_free(struct platform_device *dev)
 {
 	of_release_dev(&dev->dev);
 }