wifi: rtw89: add DBCC H2C to notify firmware the status

To support MLO of WiFi 7, we should configure hardware as DBCC mode, and
notify this status to firmware.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20231211083341.118047-6-pkshih@realtek.com