hammerhead: update prebuilt kernel

ea50762 Remove build & conflict errors for commit
1d8c783dff935599870485f76fdfc76ee84799e9
0a12686 Revert "nf: IDLETIMER: time-stamp and suspend/resume handling."
f252c58 Revert "nf: Fix PM notifier list corruption"

Bug: 13589658
Change-Id: I9d98c2b167c071bbef0c1efae04db0535311fd80
diff --git a/zImage-dtb b/zImage-dtb
index 388841f..19483ec 100644
--- a/zImage-dtb
+++ b/zImage-dtb
Binary files differ