iwlwifi: dbg: move debug data to a struct

The debug variables are bloating the iwl_fw struct.  And the fields
are out of order, missing docs and some are redundant.

Clean this up.  This serves as preparation for unionizing it for the
new ini infra.

Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
index 6c636b2..26b3c73 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-trans.h
@@ -725,7 +725,7 @@ struct iwl_dram_data {
  * @dbg_dest_tlv: points to the destination TLV for debug
  * @dbg_conf_tlv: array of pointers to configuration TLVs for debug
  * @dbg_trigger_tlv: array of pointers to triggers TLVs for debug
- * @dbg_dest_reg_num: num of reg_ops in %dbg_dest_tlv
+ * @dbg_n_dest_reg: num of reg_ops in %dbg_dest_tlv
  * @num_blocks: number of blocks in fw_mon
  * @fw_mon: address of the buffers for firmware monitor
  * @system_pm_mode: the system-wide power management mode in use.
@@ -778,7 +778,7 @@ struct iwl_trans {
 	const struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
 	struct iwl_fw_dbg_trigger_tlv * const *dbg_trigger_tlv;
 	u32 dbg_dump_mask;
-	u8 dbg_dest_reg_num;
+	u8 dbg_n_dest_reg;
 	int num_blocks;
 	struct iwl_dram_data fw_mon[IWL_MAX_DEBUG_ALLOCATIONS];