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/serial/s3c2410.c b/drivers/serial/s3c2410.c
index 06a17df..0367923 100644
--- a/drivers/serial/s3c2410.c
+++ b/drivers/serial/s3c2410.c
@@ -63,7 +63,7 @@
 
 #include <linux/module.h>
 #include <linux/ioport.h>
-#include <linux/device.h>
+#include <linux/platform_device.h>
 #include <linux/init.h>
 #include <linux/sysrq.h>
 #include <linux/console.h>