flashmap: Update OWNERS

Duncan no longer at Google.

See https://chat.google.com/room/AAAAYav-QOY/jaq2Fz5g_9I for context.

BUG=none
TEST=none

Change-Id: I1dbeb82c73d1c62bf0d45cd2321cb29bfb1f7db9
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/flashmap/+/3140586
Tested-by: Jack Rosenthal <jrosenth@chromium.org>
Reviewed-by: Dossym Nurmukhanov <dossym@chromium.org>
Reviewed-by: Piotr Pawliczek <pawliczek@chromium.org>
Reviewed-by: Mike Nichols <mikenichols@chromium.org>
Owners-Override: Piotr Pawliczek <pawliczek@chromium.org>
Commit-Queue: Jack Rosenthal <jrosenth@chromium.org>

OWNERS

diff --git a/OWNERS b/OWNERS
index e525dff..bfec3ed 100644
--- a/OWNERS
+++ b/OWNERS
@@ -1,2 +1,4 @@
-dlaurie@chromium.org
-dlaurie@google.com
+dossym@chromium.org
+jrosenth@chromium.org
+quasisec@chromium.org
+vapier@chromium.org