wifi: rtw89: coex: Update RTL8852B LNA2 hardware parameter

The LNA gain didn't set before, it will lead some WiFi RX issue.
And the setting can increase both of WiFi & BT performance while
they are both RX.

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/20230314020617.28193-4-pkshih@realtek.com