iwlwifi: add wrappers for command sending

Add wrappers to send commands from the DVM
op-mode (which essentially consists of the
current driver). This will allow us to move
specific sanity checks there.

Also, this removes iwl_trans_send_cmd_pdu()
since that can now be taken care of in the
DVM-specific wrapper.

Signed-off-by: Johannes Berg <johannes.berg@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-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index ef89663..150bef0 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -232,7 +232,7 @@
 		return -EFAULT;
 	}
 
-	return iwl_trans_send_cmd(trans(priv), &hcmd);
+	return iwl_dvm_send_cmd(priv, &hcmd);
 }
 
 static struct iwl_lib_ops iwl6000_lib = {