hammerhead: update prebuilt kernel

f93752fd cgroup: Fix use after free of cgrp (cgrp->css_sets)
395d718 cgroup: Take css_set_lock from cgroup_css_sets_empty()

Bug: 16370204

Change-Id: Ib0da6a2aa3c73a2bd4a9f79bc66e198020045543
1 file changed
tree: 6d25caffd38a140a2991b54fceb3b577597198d0
  1. zImage-dtb