wifi: rtw89: mcc: consider and determine BT duration

Before calculating MCC pattern, we have to determine whether to handle BT
duration in it or not. The decision will depend on the channels that Wi-Fi
roles use. And, we have three cases shown below.
1. non-2GHz + non-2GHz
2. non-2GHz + 2GHz (different band)
3. 2GHz + 2GHz (dual 2GHz)

For case (1), we don't care BT duration in MCC pattern. For case (2), we
still don't care BT duration in MCC pattern. Instead, we try to satisfy it
by modifying duration of Wi-Fi role on non-2GHz channel. For case (3), we
need to modify Wi-Fi durations and also need to handle BT duration in MCC
pattern.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230831053133.24015-4-pkshih@realtek.com