hammerhead: update prebuilt kernel

f39844e msm: mdss: fix check for bwc and decimation
721d53f msm: mdss: Decimation and BWC cannot be enabled together
ae3f2a1 mm: reorder can_do_mlock to fix audit denial
a059562 boot:dtsi: Add the active current values in uA for the cpus in device tree.
d17e7e2 uid_cputime: Extends the cputime functionality to report power per uid
d0c5706 sched: cpufreq: Adds a field cpu_power in the task_struct
0d6489d cpufreq_stats: Adds the fucntionality to load current values for each frequency for all the cores.

Linux version 3.4.0-gf39844e (android-build@vpef4.mtv.corp.google.com)
(gcc version 4.8 (GCC) ) #1 SMP PREEMPT Mon Jun 15 17:24:07 UTC 2015
Linux version

Bug: 18134092
Bug: 19590990
Bug: 21498425
Change-Id: I20d2cfa469e713cc7422ba6e997aa42914a6a597
Signed-off-by: Vineeta Srivastava <vsrivastava@google.com>
diff --git a/zImage-dtb b/zImage-dtb
index db0fe54..6d15c8b 100644
--- a/zImage-dtb
+++ b/zImage-dtb
Binary files differ