hammerhead: update prebuilt kernel

e2a8198 SELinux: use deletion-safe iterator to free list

Linux version 3.4.0-ge2a8198 (android-build@kpfj15.cbf.corp.google.com)
(gcc version 4.8 (GCC) ) #1 SMP PREEMPT Wed Apr 22 21:08:20 UTC 2015

Bug: 20457636
Change-Id: I1e957c41d6dc8a75c645685f26798a27a248a5eb
Signed-off-by: Thierry Strudel <tstrudel@google.com>
diff --git a/zImage-dtb b/zImage-dtb
index 575dd52..a4949ae 100755
--- a/zImage-dtb
+++ b/zImage-dtb
Binary files differ