wifi: rtw89: coex: only read Bluetooth counter of report version 1 for RTL8852A

Only when firmware control report version is 1, need to get the counter by
reading the register. The other version will monitor the counter at
firmware. And upstream branch only RTL8852A has this old version.

Signed-off-by: Ching-Te Ku <ku920601@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/20230103140238.15601-7-pkshih@realtek.com