rtw89: 8852a: add firmware v0.9.12.2

Add firmware to support Realtek RTL8852A chip.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Josh Boyer <jwboyer@kernel.org>

WHENCE

@@ -3066,6 +3066,14 @@ Licence: Redistributable. See LICENCE.rtlwifi_firmware.txt for details.
 
 --------------------------------------------------------------------------
 
+Driver: rtw89 - Realtek 802.11ax WLAN driver for RTL8852A
+
+File: rtw89/rtw8852a_fw.bin
+
+Licence: Redistributable. See LICENCE.rtlwifi_firmware.txt for details.
+
+--------------------------------------------------------------------------
+
 Driver: rtl8192ee - Realtek 802.11n WLAN driver for RTL8192EE
 
 Info: Initial version taken from Realtek version