mako: update prebuilt kernel

c51d377 prima: release v3.2.3.18

Bug: 12133044
Bug: 9735521
Bug: 8586852

Change-Id: I1cc0f62af1a3a25ab9d96b077acd5fb8da164232
Signed-off-by: Ed Tam <etam@google.com>
diff --git a/kernel b/kernel
index 91d4591..6fa951d 100644
--- a/kernel
+++ b/kernel
Binary files differ