iwlagn: introduce transport layer and implement rx_init

The transport layer is responsible for all the queues, DMA rings etc...
This is the beginning of the separation of all the code that is tighly
related to HW design to the aforementioned transport layer.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-pci.c b/drivers/net/wireless/iwlwifi/iwl-pci.c
index 3b5844b..2c26b42 100644
--- a/drivers/net/wireless/iwlwifi/iwl-pci.c
+++ b/drivers/net/wireless/iwlwifi/iwl-pci.c
@@ -67,6 +67,7 @@
 #include "iwl-agn.h"
 #include "iwl-core.h"
 #include "iwl-io.h"
+#include "iwl-trans.h"
 
 /* PCI registers */
 #define PCI_CFG_RETRY_TIMEOUT	0x041