ath11k: debugfs: Fix spelling mistake "Opportunies" -> "Opportunities"

There is a spelling mistake in some debug text, fix this.
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210212113627.212787-1-colin.king@canonical.com

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

@@ -3851,7 +3851,7 @@ htt_print_pdev_obss_pd_stats_tlv_v(const void *tag_buf,
 			   htt_stats_buf->num_non_srg_ppdu_tried);
 	len += HTT_DBG_OUT(buf + len, buf_len - len, "Non-SRG success PPDU = %u\n",
 			   htt_stats_buf->num_non_srg_ppdu_success);
-	len += HTT_DBG_OUT(buf + len, buf_len - len, "SRG Opportunies = %u\n",
+	len += HTT_DBG_OUT(buf + len, buf_len - len, "SRG Opportunities = %u\n",
 			   htt_stats_buf->num_srg_opportunities);
 	len += HTT_DBG_OUT(buf + len, buf_len - len, "SRG tried PPDU = %u\n",
 			   htt_stats_buf->num_srg_ppdu_tried);