wifi: rtw89: 8922a: update scan offload H2C fields

Update scan offload H2C length to fit new FW format.
This change is required after FW version 0.35.15.0. Since the first release
of firmware is 0.35.18.0, we don't maintain backward compatibility.
Signed-off-by: Chih-Kang Chang <gary.chang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://msgid.link/20240328052656.18823-2-pkshih@realtek.com

drivers/net/wireless/realtek/rtw89/fw.h

@@ -2981,6 +2981,7 @@ struct rtw89_h2c_scanofld_be {
 	__le32 w5;
 	__le32 w6;
 	__le32 w7;
+	__le32 w8;
 	struct rtw89_h2c_scanofld_be_macc_role role[];
 } __packed;