wifi: rtw89: 8922a: add helper of set_channel

Reset hardware state to prevent hardware stays at abnormal state during
setting channel. Besides, add preparation for MLO/DBCC before setting
channel, and reconfigure registers after that.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20240215055741.14148-5-pkshih@realtek.com