mako: update prebuilt kernel [DO NOT MERGE]

dffc258 Revert "Update to 4.7 toolchain to match previous config"
063389c ipv4: Missing sk_nulls_node_init() in ping_unhash().
7555e42 Update to 4.7 toolchain to match previous config

Linux version 3.4.0-perf-gdffc258 (android-build@vpee9.mtv.corp.google.com)
(gcc version 4.6.x-google 20120106 (prerelease) (GCC) ) #1 SMP PREEMPT Wed Jul 8 23:25:22 UTC 2015

Bug: 20770158

Change-Id: I6caa209c4dd0e708817594c1bf42a3c02b24869a
Signed-off-by: Patrick Tjin <pattjin@google.com>
diff --git a/kernel b/kernel
index c200fb0..64788cf 100644
--- a/kernel
+++ b/kernel
Binary files differ