Adding sheriffs for visibility

Here's the failure in SignerTest

https://luci-logdog.appspot.com/logs/chromeos/buildbucket/cr-buildbucket.appspot.com/8924816009172793216/+/steps/SignerTest/0/stdout

sed: -e expression #1, char 75: Invalid back reference
Unexpected kernel parameters found:
  snd_soc_dmic.modeswitch_delay_ms=35 

I'll fix it.

I've decided to revert https://chromium-review.googlesource.com/1381297, since it had a bug anyway.

revert here:
https://chromium-review.googlesource.com/c/chromiumos/overlays/board-overlays/+/1404356

The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/overlays/board-overlays/+/852b89749fdb2618c2cf357d1d81f9b64cb805d7

commit 852b89749fdb2618c2cf357d1d81f9b64cb805d7
Author: Benson Leung <bleung@google.com>
Date: Thu Jan 10 01:49:31 2019

Revert "nocturne: set modeswitch_delay_ms=35 in kernel commandline"

This reverts commit 27e2929e4e86ef05e8f0ac5b64cce063baa1876a.

Reason for revert: Two problems.
1. This change landed without updating the whitelist in signer
   (see chromium:920408), so this broke signing recovery images for
   3 weeks.
2. modeswitch_delay_ms doesn't seem to be the right module param name.
   The one introduced in https://patchwork.kernel.org/patch/10702955/
   is "modeswitch_delay" so I'm convinced this change does nothing.

Original change's description:
> nocturne: set modeswitch_delay_ms=35 in kernel commandline
>
> Set snd_soc_dmic.modeswitch_delay_ms=35 in kernel command line to enable
> a delay between DMIC mode change. This is to enable the new module param
> introduced in patch https://patchwork.kernel.org/patch/10702955/
>
> BUG=b:117679624
> TEST=Verify DMIC capture on nocturne after cold reboot
>
> Change-Id: Ia4d40a92c497152f63fe22de1328a6bbe6cf2646
> Signed-off-by: Jenny TC <jenny.tc@intel.com>
> Reviewed-on: https://chromium-review.googlesource.com/1381297
> Commit-Ready: Nick Vaccaro <nvaccaro@google.com>
> Tested-by: Nick Vaccaro <nvaccaro@google.com>
> Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
> Reviewed-by: Chirantan Ekbote <chirantan@chromium.org>

Signed-off-by: Benson Leung <bleung@chromium.org>

Bug=b:117679624, chromium:920408 , chromium:917053 
TEST=SignerTest passes on nocturne canary (M-73).

Change-Id: I4bb6b64919992a8800fa89367166cdc5dcfa11d0
Reviewed-on: https://chromium-review.googlesource.com/c/1404356
Commit-Queue: Nicolas Boichat <drinkcat@chromium.org>
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
Trybot-Ready: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Chirantan Ekbote <chirantan@chromium.org>
Reviewed-by: Bob Moragues <moragues@chromium.org>

[delete] https://crrev.com/51648c27ccfc458b5b53c9b0d1824f05b7a59180/overlay-nocturne/scripts/build_kernel_image.sh

11558.0 successfully passed SignerTest and signed properly.