rtw88: 8821c: support RFE type2 wifi NIC

RFE type2 is a new NIC which has one RF antenna shares with BT.
Update phy parameter to verstion V57 to allow initial procedure
to load extra AGC table for sharing antenna NIC.

Signed-off-by: Guo-Feng Fan <vincent_fann@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210202055012.8296-4-pkshih@realtek.com