rtw88: RTL8822C: add WoW firmware v7.3

Add WoW firmware to support entering Wake on WirelessLAN mode
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Josh Boyer <jwboyer@kernel.org>

WHENCE

@@ -2791,6 +2791,7 @@ Driver: rtw88 - Realtek 802.11ac WLAN driver for RTL8822BE and RTL8822CE
 Info: Sent to Larry Finger by Realtek engineer Yan-Hsuan Chuang <yhchuang@realtek.com>
 File: rtw88/rtw8822b_fw.bin
 File: rtw88/rtw8822c_fw.bin
+File: rtw88/rtw8822c_wow_fw.bin
 
 Licence: Redistributable. See LICENCE.rtlwifi_firmware.txt for details.