Update firmware for rtl8723be

This version corresponds to the firmware in the vendor's driver labelled
rtlwifi_linux_mac80211_0019.0320.2014V628.
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kyle McMartin <kyle@kernel.org>

WHENCE

@@ -2053,7 +2053,7 @@ Licence: Redistributable. See LICENCE.rtlwifi_firmware.txt for details.
 
 Driver: rtl8723be - Realtek 802.11n WLAN driver for RTL8723BE
 
-Info: Taken from driver sent to me from Realtek
+Info: From Vendor's realtek/rtlwifi_linux_mac80211_0019.0320.2014V628 driver
 File: rtlwifi/rtl8723befw.bin
 
 Licence: Redistributable. See LICENCE.rtlwifi_firmware.txt for details.