angler: update prebuilt kernel

c4340bf net: wireless: bcmdhd: fix for wl_wifi wakelock leak issue

Linux version 3.10.73-gc4340bf (android-build@wpee21.hot.corp.google.com)
(gcc version 4.9.x-google 20140827 (prerelease) (GCC) )
 #1 SMP PREEMPT Mon Jun 20 21:01:11 UTC 2016

Bug: 29159680
Change-Id: I2867f8cd930fd6f306d285a8c43e9927a2ba0f09
Signed-off-by: Gilad Avidov <giladavidov@google.com>