update emulator kernel 3.18

For arm/arm64/x86/x86_64

cl: b8e28994609f0582a170708b31d38e7512f036d8
jinqian@google.com "ranchu: defconfigs: enable HW_RANDOM_VIRTIO and savedefconfig"

Change-Id: If9ae7f7e199429e7741662b29a4ef2663caf3bbb
4 files changed