ath11k: fix spelling mistake "moniter" -> "monitor"

There is a spelling mistake in an ath11k_warn warning message. Fix it.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200819074729.48591-1-colin.king@canonical.com

drivers/net/wireless/ath/ath11k/debug.c

@@ -1097,7 +1097,7 @@ static ssize_t ath11k_write_pktlog_filter(struct file *file,
 						       DP_RX_BUFFER_SIZE, &tlv_filter);
 
 		if (ret) {
-			ath11k_warn(ab, "failed to set rx filter for moniter status ring\n");
+			ath11k_warn(ab, "failed to set rx filter for monitor status ring\n");
 			goto out;
 		}
 	}