iwlagn: add missing includes

a few h files weren't self contained. Fix that.
Move iwl_dma_ptr to transport layer since it is not used by the upper layer
any more.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-fh.h b/drivers/net/wireless/iwlwifi/iwl-fh.h
index c1b8837..5bede9d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fh.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fh.h
@@ -63,6 +63,8 @@
 #ifndef __iwl_fh_h__
 #define __iwl_fh_h__
 
+#include <linux/types.h>
+
 /****************************/
 /* Flow Handler Definitions */
 /****************************/