bullhead: update prebuilt kernel

5386d75 UPSTREAM: KEYS: Fix keyring ref leak in join_session_keyring()

Bug: 26636379

Linux version 3.10.73-g5386d75 (android-build@kpfi4.cbf.corp.google.com)
(gcc version 4.9.x-google 20140827 (prerelease) (GCC) ) #1 SMP PREEMPT Wed Jan 20 22:40:57 UTC 2016

Change-Id: I666d88008d70f3c82d093afecfa795cd973c6c5a
Signed-off-by: Patrick Tjin <pattjin@google.com>
diff --git a/Image.gz-dtb b/Image.gz-dtb
index ac9653b..91a780d 100644
--- a/Image.gz-dtb
+++ b/Image.gz-dtb
Binary files differ