rtlwifi: Add firmware v16.0 for RTL8710BU aka RTL8188GU

rtl8xxxu will support this device.

Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>

WHENCE

@@ -3135,6 +3135,11 @@ Info: rtl8188fu taken from Realtek driver
       has been extracted into a binary file.
 File: rtlwifi/rtl8188fufw.bin
 
+File: rtlwifi/rtl8710bufw_SMIC.bin
+Version: 16.0
+File: rtlwifi/rtl8710bufw_UMC.bin
+Version: 16.0
+
 Licence: Redistributable. See LICENCE.rtlwifi_firmware.txt for details.
 
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