wifi: rtw89: coex: Fix wrong structure assignment at null data report

Correct pointer assignment of v1 null data report. It doesn't really
change logic at all, but it looks more readable.
Signed-off-by: NChing-Te Ku <ku920601@realtek.com>
Signed-off-by: NPing-Ke Shih <pkshih@realtek.com>
Signed-off-by: NKalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230308053225.24377-6-pkshih@realtek.com

drivers/net/wireless/realtek/rtw89/coex.c

@@ -1065,7 +1065,7 @@ static u32 _chk_btc_report(struct rtw89_dev *rtwdev,
 	case BTC_RPT_TYPE_NULLSTA:
 		pcinfo = &pfwinfo->rpt_fbtc_nullsta.cinfo;
 		if (ver->fcxnullsta == 1) {
-			pfinfo = &pfwinfo->rpt_fbtc_nullsta.finfo;
+			pfinfo = &pfwinfo->rpt_fbtc_nullsta.finfo.v1;
 			pcinfo->req_len = sizeof(pfwinfo->rpt_fbtc_nullsta.finfo.v1);
 		} else if (ver->fcxnullsta == 2) {
 			pfinfo = &pfwinfo->rpt_fbtc_nullsta.finfo.v2;