hammerhead: update prebuilt kernel

b45ded4 lowmemorykiller: enhance debug information
ead4c8b mm, oom: make dump_tasks public
af86603 fs/seq_file: Use vmalloc by default for allocations > PAGE_SIZE
31097bd fs/seq_file: fallback to vmalloc allocation
edd4e85 nick kvfree() from apparmor
e6d08df lowmemorykiller: make default lowmemorykiller debug message useful

improvements for:
b/17871993 Memory leak leading to unusable phone after 38h uptime
b/18069309 N5 running L can't run as many apps simultaneously as running K

Change-Id: Ie062e0b70fb10d8150b948b64cf155461cd51900
Signed-off-by: Iliyan Malchev <malchev@google.com>
diff --git a/zImage-dtb b/zImage-dtb
index 59fe923..045fe87 100644
--- a/zImage-dtb
+++ b/zImage-dtb
Binary files differ