net: dsa: b53: Platform data shan't include kernel.h

Replace with appropriate types.h.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/linux/platform_data/b53.h

@@ -19,7 +19,7 @@
 #ifndef __B53_H
 #define __B53_H
 
-#include <linux/kernel.h>
+#include <linux/types.h>
 #include <linux/platform_data/dsa.h>
 
 struct b53_platform_data {