rtl_bt: Add firmware and config file for RTL8822BE

This device is a new model from Realtek. Updates to driver btrtl will
soon be submitted to the kernel.

These files were provided by the Realtek developer.

Signed-off-by: 陆朱伟 <alex_lu@realsil.com.cn>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: linux-bluetooth@vger.kernel.org
[bwh: Fixed the filename wildcard in WHENCE]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

WHENCE

@@ -2796,11 +2796,14 @@ File: rtl_bt/rtl8723b_fw.bin
 File: rtl_bt/rtl8761a_fw.bin
 File: rtl_bt/rtl8812ae_fw.bin
 File: rtl_bt/rtl8821a_fw.bin
+File: rtl_bt/rtl8822b_fw.bin
+File: rtl_bt/rtl8822b_config.bin
 
 Licence: Redistributable. See LICENCE.rtlwifi_firmware.txt for details.
 
 Found in vendor driver, linux_bt_usb_2.11.20140423_8723be.rar
 From https://github.com/troy-tan/driver_store
+Files rtl_bt/rtl8822b_* came directly from Realtek.
 
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