Revert "Revert "hammerhead: update prebuilt kernel""

This reverts commit d5e6379333aa94cca2d739c8eb3c501441640c16.

Change-Id: I2fbfc971d353971d4097c86364df39955567dbd8
diff --git a/zImage-dtb b/zImage-dtb
index df25b2f..117bc4d 100644
--- a/zImage-dtb
+++ b/zImage-dtb
Binary files differ