hammerhead: update prebuilt kernel

e744ef msm: vidc: Re-enable VP8 4K support

Linux version 3.4.0-ge744eff (android-build@vpbs1.mtv.corp.google.com) (gcc version 4.7 (GCC) ) #1 SMP PREEMPT Thu Jan 15 21:46:20 UTC 2015

Bug: 19012867
Change-Id: Ic3aafb4e36bd6bbecaec22219a527ad9957addaa
diff --git a/zImage-dtb b/zImage-dtb
index 986382a..75b0003 100644
--- a/zImage-dtb
+++ b/zImage-dtb
Binary files differ