marlin: update prebuilt kernel

f8ae87d8f5c8 binder: accidentally left BUG_ON in when WARN_ON was intended
bb014c9498bc binder: fix missing lock around bitfield manipulation
68a14410c701 binder: fix race condition in new thread insertion to rb_tree

Linux version 3.18.31-gf8ae87d8f5c8 (android-build@kpfj6.cbf.corp.google.com)
(gcc version 4.9.x 20150123 (prerelease) (GCC) )
 #1 SMP PREEMPT Thu Jan 26 01:18:01 UTC 2017 (master)

Bug: 32225111
Bug: 34719966
Bug: 34720983
Test: Manual
Change-Id: Iddc048bc0f6b1e9929b06395afce539fdd323928
Source-Branch: android-msm-marlin-3.18
Signed-off-by: Todd Kjos <tkjos@google.com>
diff --git a/Image.gz-dtb b/Image.gz-dtb
index a2c6b55..be0cc2a 100644
--- a/Image.gz-dtb
+++ b/Image.gz-dtb
Binary files differ
diff --git a/Image.gz-dtb.kasan b/Image.gz-dtb.kasan
index 959f128..54e7ee0 100644
--- a/Image.gz-dtb.kasan
+++ b/Image.gz-dtb.kasan
Binary files differ