iwlwifi: introduce Image Loader (IML) - new firmware image

In future devices a new image will be introduced - IML. The IML, image
loader, is loaded by the ROM, and as part of the new self-init flow,
loads the rest of the firmware images to the device.

Store the image, so the ROM can load it to the device.

Signed-off-by: Golan Ben Ami <golan.ben.ami@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

drivers/net/wireless/intel/iwlwifi/iwl-trans.h

@@ -691,6 +691,8 @@ enum iwl_plat_pm_mode {
  * @wide_cmd_header: true when ucode supports wide command header format
  * @num_rx_queues: number of RX queues allocated by the transport;
  *	the transport must set this before calling iwl_drv_start()
+ * @iml_len: the length of the image loader
+ * @iml: a pointer to the image loader itself
  * @dev_cmd_pool: pool for Tx cmd allocation - for internal use only.
  *	The user should use iwl_trans_{alloc,free}_tx_cmd.
  * @rx_mpdu_cmd: MPDU RX command ID, must be assigned by opmode before
@@ -735,6 +737,9 @@ struct iwl_trans {
 
 	u8 num_rx_queues;
 
+	size_t iml_len;
+	u8 *iml;
+
 	/* The following fields are internal only */
 	struct kmem_cache *dev_cmd_pool;
 	char dev_cmd_pool_name[50];