package/rtl8723bu: bump to latest version

Fixes:
http://autobuild.buildroot.net/results/4ba/4baf7b753a16e9cd798eaf51a4cb994a22f437e8/

Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/rtl8723bu/rtl8723bu.hash

@@ -1,2 +1,2 @@
 # Locally computed
-sha256  1cd658742ce10b21c92877e09cecc98880680d5f150de3845553005abc542977  rtl8723bu-19b4bdc05483a1e79a4f955a80f8f72cdd5dedc3.tar.gz
+sha256  07fece152704f4b5dbd0fd3af842816f95824317f3158fea774f15a6eddac009  rtl8723bu-d79a676a8d3f0bb6ac8af126689c6ac6869cb6f2.tar.gz

package/rtl8723bu/rtl8723bu.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-RTL8723BU_VERSION = 19b4bdc05483a1e79a4f955a80f8f72cdd5dedc3
+RTL8723BU_VERSION = d79a676a8d3f0bb6ac8af126689c6ac6869cb6f2
 RTL8723BU_SITE = $(call github,lwfinger,rtl8723bu,$(RTL8723BU_VERSION))
 RTL8723BU_LICENSE = GPL-2.0, proprietary (*.bin firmware blobs)