[SPARC]: Define minimal struct dev_archdata, similarly to sparc64.

Signed-off-by: David S. Miller <davem@davemloft.net>

include/asm-sparc/device.h

@@ -3,5 +3,17 @@
  *
  * This file is released under the GPLv2
  */
-#include <asm-generic/device.h>
+#ifndef _ASM_SPARC_DEVICE_H
+#define _ASM_SPARC_DEVICE_H
+
+struct device_node;
+struct of_device;
+
+struct dev_archdata {
+	struct device_node	*prom_node;
+	struct of_device	*op;
+};
+
+#endif /* _ASM_SPARC_DEVICE_H */
+