mwifiex: fix invalid access of PCIe RxBD ring buffer descriptor

This patch fixes invalid access of RxBD ring buffer descriptor's
length and flag inside PCIe send_data_complete() routine. We are
supposed to modify TxBD buffer descriptor's length and flag here.
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/mwifiex/pcie.c

@@ -846,8 +846,8 @@ static int mwifiex_pcie_send_data_complete(struct mwifiex_adapter *adapter)
 
 		card->tx_buf_list[wrdoneidx] = NULL;
 		card->txbd_ring[wrdoneidx]->paddr = 0;
-		card->rxbd_ring[wrdoneidx]->len = 0;
-		card->rxbd_ring[wrdoneidx]->flags = 0;
+		card->txbd_ring[wrdoneidx]->len = 0;
+		card->txbd_ring[wrdoneidx]->flags = 0;
 		card->txbd_rdptr++;
 
 		if ((card->txbd_rdptr & MWIFIEX_TXBD_MASK) == num_tx_buffs)