rtw88: Add RTL8703B firmware v11.0.0

RTL8703B is the WiFi part of RTL8723CS, the WiFi/bluetooth module used
in the Pinephone. This firmware has been extracted from the rtl8723cs
vendor driver, v5.12.2-7-g2de5ec386.20201013_beta.

Signed-off-by: Fiona Klute <fiona.klute@gmx.de>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>

WHENCE

@@ -3197,6 +3197,8 @@ File: rtw88/rtw8822c_wow_fw.bin
 File: rtw88/README
 File: rtw88/rtw8723d_fw.bin
 File: rtw88/rtw8821c_fw.bin
+File: rtw88/rtw8703b_fw.bin
+File: rtw88/rtw8703b_wow_fw.bin
 
 Licence: Redistributable. See LICENCE.rtlwifi_firmware.txt for details.
 
@@ -3205,8 +3207,8 @@ Licence: Redistributable. See LICENCE.rtlwifi_firmware.txt for details.
     for RTL8822C devices, after kernel v5.6+. So, make sure the firmware
     rtw88/rtw8822c_wow_fw.bin is also packed, otherwise the firmware load
     fail could be a problem.
-    Although RTL8723D devices are 802.11n device, they are also supported
+    Although RTL8723D and RTL8703B devices are 802.11n devices, they
-    by rtw88 because the hardware arch is similar.
+    are also supported by rtw88 because the hardware arch is similar.
 
 --------------------------------------------------------------------------
 

rtw88/README

@@ -32,3 +32,6 @@ RTL8822CE
 RTL8723DE
     rtw8723d_fw.bin
 
+RTL8723CS/RTL8703B
+    rtw8703b_fw.bin
+    rtw8703b_wow_fw.bin