wifi: rtw89: 8851b: add DLE mem and HFC quota

Configure DLE (data link engine) memory size for operating modes.
Similarly, HFC standing for HCI flow control is used to set quota
according to operating modes, which are SCC or download firmware.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230421024551.29994-9-pkshih@realtek.com