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

 drivers/net/wireless/intel/iwlegacy/4965-rs.c:156: warning: cannot understand function prototype: 's32 expected_tpt_legacy[RATE_COUNT] = '
 drivers/net/wireless/intel/iwlegacy/4965-rs.c:406: warning: Function parameter or member 'tbl' not described in 'il4965_rs_collect_tx_data'
 drivers/net/wireless/intel/iwlegacy/4965-rs.c:406: warning: Function parameter or member 'scale_idx' not described in 'il4965_rs_collect_tx_data'
 drivers/net/wireless/intel/iwlegacy/4965-rs.c:406: warning: Function parameter or member 'attempts' not described in 'il4965_rs_collect_tx_data'
 drivers/net/wireless/intel/iwlegacy/4965-rs.c:406: warning: Function parameter or member 'successes' not described in 'il4965_rs_collect_tx_data'
 drivers/net/wireless/intel/iwlegacy/4965-rs.c:629: warning: Function parameter or member 'il' not described in 'il4965_rs_use_green'
 drivers/net/wireless/intel/iwlegacy/4965-rs.c:629: warning: Function parameter or member 'sta' not described in 'il4965_rs_use_green'
 drivers/net/wireless/intel/iwlegacy/4965-rs.c:645: warning: Function parameter or member 'lq_sta' not described in 'il4965_rs_get_supported_rates'
 drivers/net/wireless/intel/iwlegacy/4965-rs.c:645: warning: Function parameter or member 'hdr' not described in 'il4965_rs_get_supported_rates'
 drivers/net/wireless/intel/iwlegacy/4965-rs.c:645: warning: Function parameter or member 'rate_type' not described in 'il4965_rs_get_supported_rates'
 drivers/net/wireless/intel/iwlegacy/4965-rs.c:2130: warning: duplicate section name 'NOTE'
 drivers/net/wireless/intel/iwlegacy/4965-rs.c:2134: warning: Function parameter or member 'il' not described in 'il4965_rs_initialize_lq'
 drivers/net/wireless/intel/iwlegacy/4965-rs.c:2134: warning: Function parameter or member 'conf' not described in 'il4965_rs_initialize_lq'
 drivers/net/wireless/intel/iwlegacy/4965-rs.c:2134: warning: Function parameter or member 'sta' not described in 'il4965_rs_initialize_lq'
 drivers/net/wireless/intel/iwlegacy/4965-rs.c:2134: warning: Function parameter or member 'lq_sta' not described in 'il4965_rs_initialize_lq'

Cc: Stanislaw Gruszka <stf_xl@wp.pl>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Linux Wireless <ilw@linux.intel.com>
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/20200821071644.109970-23-lee.jones@linaro.org