hammerhead: update prebuilt kernel automerge: b2974e6
automerge: 98d5664

* commit '98d566479ffe546c010991fdd9e569bb3cad5b3e':
diff --git a/zImage-dtb b/zImage-dtb
index 533dd9c..df25b2f 100644
--- a/zImage-dtb
+++ b/zImage-dtb
Binary files differ