wil6210: txrx_edma: Demote comments which are clearly not kernel-doc

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

 drivers/net/wireless/ath/wil6210/txrx_edma.c:155: warning: Function parameter or member 'wil' not described in 'wil_ring_alloc_skb_edma'
 drivers/net/wireless/ath/wil6210/txrx_edma.c:155: warning: Function parameter or member 'ring' not described in 'wil_ring_alloc_skb_edma'
 drivers/net/wireless/ath/wil6210/txrx_edma.c:155: warning: Function parameter or member 'i' not described in 'wil_ring_alloc_skb_edma'
 drivers/net/wireless/ath/wil6210/txrx_edma.c:1161: warning: Function parameter or member 'wil' not described in 'wil_tx_sring_handler'
 drivers/net/wireless/ath/wil6210/txrx_edma.c:1161: warning: Function parameter or member 'sring' not described in 'wil_tx_sring_handler'
 drivers/net/wireless/ath/wil6210/txrx_edma.c:1328: warning: Function parameter or member 'd' not described in 'wil_tx_desc_offload_setup_tso_edma'
 drivers/net/wireless/ath/wil6210/txrx_edma.c:1328: warning: Function parameter or member 'tso_desc_type' not described in 'wil_tx_desc_offload_setup_tso_edma'
 drivers/net/wireless/ath/wil6210/txrx_edma.c:1328: warning: Function parameter or member 'is_ipv4' not described in 'wil_tx_desc_offload_setup_tso_edma'
 drivers/net/wireless/ath/wil6210/txrx_edma.c:1328: warning: Function parameter or member 'tcp_hdr_len' not described in 'wil_tx_desc_offload_setup_tso_edma'
 drivers/net/wireless/ath/wil6210/txrx_edma.c:1328: warning: Function parameter or member 'skb_net_hdr_len' not described in 'wil_tx_desc_offload_setup_tso_edma'
 drivers/net/wireless/ath/wil6210/txrx_edma.c:1328: warning: Function parameter or member 'mss' not described in 'wil_tx_desc_offload_setup_tso_edma'

Cc: Maya Erez <merez@codeaurora.org>
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: wil6210@qti.qualcomm.com
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/20200827073545.GU3248864@dell

drivers/net/wireless/ath/wil6210/txrx_edma.c

@@ -147,9 +147,7 @@ static int wil_tx_init_edma(struct wil6210_priv *wil)
 	return rc;
 }
 
-/**
- * Allocate one skb for Rx descriptor RING
- */
+/* Allocate one skb for Rx descriptor RING */
 static int wil_ring_alloc_skb_edma(struct wil6210_priv *wil,
 				   struct wil_ring *ring, u32 i)
 {
@@ -1152,8 +1150,7 @@ wil_get_next_tx_status_msg(struct wil_status_ring *sring, u8 *dr_bit,
 	*msg = *_msg;
 }
 
-/**
- * Clean up transmitted skb's from the Tx descriptor RING.
+/* Clean up transmitted skb's from the Tx descriptor RING.
  * Return number of descriptors cleared.
  */
 int wil_tx_sring_handler(struct wil6210_priv *wil,
@@ -1314,8 +1311,7 @@ int wil_tx_sring_handler(struct wil6210_priv *wil,
 	return desc_cnt;
 }
 
-/**
- * Sets the descriptor @d up for csum and/or TSO offloading. The corresponding
+/* Sets the descriptor @d up for csum and/or TSO offloading. The corresponding
  * @skb is used to obtain the protocol and headers length.
  * @tso_desc_type is a descriptor type for TSO: 0 - a header, 1 - first data,
  * 2 - middle, 3 - last descriptor.