grouper: update prebuilt kernel

3fe067f fix false disconnect due to a signal sent to the reading process

Bug: 12765000

Change-Id: I7a572925d00c15a7fd40b30daa5216b87d20b33b
Signed-off-by: Ed Tam <etam@google.com>
diff --git a/kernel b/kernel
index 4af3b6f..30e8aa8 100644
--- a/kernel
+++ b/kernel
Binary files differ