wifi: rtw89: coex: Add register monitor report v2 format

The v2 firmware report reduce its maximum register numbers from 30 to 20,
it can help to save firmware code size.

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/20230308053225.24377-5-pkshih@realtek.com