iwlwifi: mvm: constify the parameters of a few functions in fw-dbg.c

The debug functions of fw-dbg.c don't really need to modify
the trigger and the description they receive as a parameter.
Constify the pointers.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
index 81b7cb7..82fb3a9 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
@@ -663,7 +663,7 @@
 	void (*resume)(struct iwl_trans *trans);
 
 	struct iwl_trans_dump_data *(*dump_data)(struct iwl_trans *trans,
-						 struct iwl_fw_dbg_trigger_tlv
+						 const struct iwl_fw_dbg_trigger_tlv
 						 *trigger);
 };
 
@@ -966,7 +966,7 @@
 
 static inline struct iwl_trans_dump_data *
 iwl_trans_dump_data(struct iwl_trans *trans,
-		    struct iwl_fw_dbg_trigger_tlv *trigger)
+		    const struct iwl_fw_dbg_trigger_tlv *trigger)
 {
 	if (!trans->ops->dump_data)
 		return NULL;