Create platform_device.h to contain all the platform device details.
Convert everyone who uses platform_bus_type to include
linux/platform_device.h.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 75ce871..95f2af3 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -10,7 +10,7 @@
  * information.
  */
 
-#include <linux/device.h>
+#include <linux/platform_device.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/dma-mapping.h>