rtw88: coex: change the coexistence mechanism for HID

Add TDMA slot type setting for later usage.
Since the transmission of HID profile is very frequently,
it may bring a big impact to WLAN performance.
To change slot type, it can make mechanism be more flexible.

Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201126021059.11981-6-pkshih@realtek.com