grouper: update prebuilt kernel

63853b3 futex: Make lookup_pi_state more robust
c2a7a27 futex: Always cleanup owner tid in unlock_pi
eddfd6a futex: Validate atomic acquisition in futex_lock_pi_atomic()
8d7d243 futex-prevent-requeue-pi-on-same-futex.patch futex: Forbid uaddr == uaddr2 in futex_requeue(..., requeue_pi=1)

Bug: 15455425
Change-Id: I0a738f816aa462396eb4d5bdc1bf04b6738fa616
diff --git a/kernel b/kernel
index 1db1a1e..8316639 100644
--- a/kernel
+++ b/kernel
Binary files differ