iwlwifi: dvm: Demote non-compliant kernel-doc headers

None of these headers attempt to document any function parameters.

Fixes the following W=1 kernel build warning(s):

 drivers/net/wireless/intel/iwlwifi/dvm/main.c:388: warning: Function parameter or member 't' not described in 'iwl_bg_statistics_periodic'
 drivers/net/wireless/intel/iwlwifi/dvm/main.c:545: warning: Function parameter or member 't' not described in 'iwl_bg_ucode_trace'
 drivers/net/wireless/intel/iwlwifi/dvm/main.c:771: warning: Function parameter or member 'priv' not described in 'iwl_alive_start'
 drivers/net/wireless/intel/iwlwifi/dvm/main.c:1692: warning: Function parameter or member 'priv' not described in 'iwl_print_event_log'
 drivers/net/wireless/intel/iwlwifi/dvm/main.c:1692: warning: Function parameter or member 'start_idx' not described in 'iwl_print_event_log'
 drivers/net/wireless/intel/iwlwifi/dvm/main.c:1692: warning: Function parameter or member 'num_events' not described in 'iwl_print_event_log'
 drivers/net/wireless/intel/iwlwifi/dvm/main.c:1692: warning: Function parameter or member 'mode' not described in 'iwl_print_event_log'
 drivers/net/wireless/intel/iwlwifi/dvm/main.c:1692: warning: Function parameter or member 'pos' not described in 'iwl_print_event_log'
 drivers/net/wireless/intel/iwlwifi/dvm/main.c:1692: warning: Function parameter or member 'buf' not described in 'iwl_print_event_log'
 drivers/net/wireless/intel/iwlwifi/dvm/main.c:1692: warning: Function parameter or member 'bufsz' not described in 'iwl_print_event_log'
 drivers/net/wireless/intel/iwlwifi/dvm/main.c:1772: warning: Function parameter or member 'priv' not described in 'iwl_print_last_event_logs'
 drivers/net/wireless/intel/iwlwifi/dvm/main.c:1772: warning: Function parameter or member 'capacity' not described in 'iwl_print_last_event_logs'
 drivers/net/wireless/intel/iwlwifi/dvm/main.c:1772: warning: Function parameter or member 'num_wraps' not described in 'iwl_print_last_event_logs'
 drivers/net/wireless/intel/iwlwifi/dvm/main.c:1772: warning: Function parameter or member 'next_entry' not described in 'iwl_print_last_event_logs'
 drivers/net/wireless/intel/iwlwifi/dvm/main.c:1772: warning: Function parameter or member 'size' not described in 'iwl_print_last_event_logs'
 drivers/net/wireless/intel/iwlwifi/dvm/main.c:1772: warning: Function parameter or member 'mode' not described in 'iwl_print_last_event_logs'
 drivers/net/wireless/intel/iwlwifi/dvm/main.c:1772: warning: Function parameter or member 'pos' not described in 'iwl_print_last_event_logs'
 drivers/net/wireless/intel/iwlwifi/dvm/main.c:1772: warning: Function parameter or member 'buf' not described in 'iwl_print_last_event_logs'
 drivers/net/wireless/intel/iwlwifi/dvm/main.c:1772: warning: Function parameter or member 'bufsz' not described in 'iwl_print_last_event_logs'

Cc: Johannes Berg <johannes.berg@intel.com>
Cc: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Cc: Luca Coelho <luciano.coelho@intel.com>
Cc: Intel Linux Wireless <linuxwifi@intel.com>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200910065431.657636-2-lee.jones@linaro.org

drivers/net/wireless/intel/iwlwifi/dvm/main.c

@@ -374,7 +374,7 @@ int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags, bool clear)
 					&statistics_cmd);
 }
 
-/**
+/*
  * iwl_bg_statistics_periodic - Timer callback to queue statistics
  *
  * This callback is provided in order to send a statistics request.
@@ -533,7 +533,7 @@ static void iwl_continuous_event_trace(struct iwl_priv *priv)
 	priv->event_log.next_entry = next_entry;
 }
 
-/**
+/*
  * iwl_bg_ucode_trace - Timer callback to log ucode event
  *
  * The timer is continually set to execute every
@@ -762,7 +762,7 @@ static void iwl_send_bt_config(struct iwl_priv *priv)
 		IWL_ERR(priv, "failed to send BT Coex Config\n");
 }
 
-/**
+/*
  * iwl_alive_start - called after REPLY_ALIVE notification received
  *                   from protocol/runtime uCode (initialization uCode's
  *                   Alive gets handled by iwl_init_alive_start()).
@@ -1682,9 +1682,8 @@ static void iwl_dump_nic_error_log(struct iwl_priv *priv)
 
 #define EVENT_START_OFFSET  (4 * sizeof(u32))
 
-/**
+/*
  * iwl_print_event_log - Dump error event log to syslog
- *
  */
 static int iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
 			       u32 num_events, u32 mode,
@@ -1762,7 +1761,7 @@ static int iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
 	return pos;
 }
 
-/**
+/*
  * iwl_print_last_event_logs - Dump the newest # of event log to syslog
  */
 static int iwl_print_last_event_logs(struct iwl_priv *priv, u32 capacity,