hammerhead: update prebuilt kernel

aac4bf4 camera: Make stop_session a blocking call

Bug: 11045420
Change-Id: Ifa18fd58c7d76df686b8fc262f2deb1863b81482
diff --git a/vmlinux.bz2 b/vmlinux.bz2
index 921a035..d520b2e 100644
--- a/vmlinux.bz2
+++ b/vmlinux.bz2
Binary files differ
diff --git a/zImage-dtb b/zImage-dtb
index 460dc16..d748943 100644
--- a/zImage-dtb
+++ b/zImage-dtb
Binary files differ