wifi: rtw89: Add rtw8851b_dle_mem_usb{2,3}

Add rtw8851b_dle_mem_usb2 and rtw8851b_dle_mem_usb3 and their various
quotas and sizes in struct rtw89_mac_size_set.

"dle" could be "Data Link Engine" or "Double Link Engine". These are
some parameters needed for RTL8851BU.

Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/91622304-614e-4e91-bf2f-7688cf44070b@gmail.com