hammerhead: update prebuilt kernel

bb643a0 msm: mdss: set writeback RGBX8888 output alpha to opaque
ab01dca msm: audio: initialize the structure before sending to user space
ca7e0c0 msm: camera: To prevent the unbounded copy
56b94061 msm: mdss: Validate mixer/ctl are not null
cd8395c msm: mdss: Account for null ctl passed to line count

Bug: 11559585
Bug: 11559584
Bug: 11559339
Bug: 11559909
Bug: 11479817
Change-Id: Ifd8427b8c34a900865e723d6a18035503e2246e8
diff --git a/vmlinux.bz2 b/vmlinux.bz2
index 468bf4c..33562c8 100644
--- a/vmlinux.bz2
+++ b/vmlinux.bz2
Binary files differ
diff --git a/zImage-dtb b/zImage-dtb
index f878826..18e56eb 100644
--- a/zImage-dtb
+++ b/zImage-dtb
Binary files differ