[omnibox] Add yoangela to the OWNERS file.

Change-Id: I42e41b63d6a8ecb4b06ed62bb45651a74570115c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2350190Reviewed-by: Tommy Li <tommycli@chromium.org>
Commit-Queue: Justin Donnelly <jdonnelly@chromium.org>
Cr-Commit-Position: refs/heads/master@{#797247}

components/omnibox/OWNERS

@@ -3,5 +3,6 @@ manukh@chromium.org
 mpearson@chromium.org
 orinj@chromium.org
 tommycli@chromium.org
+yoangela@chromium.org
 
 # COMPONENT: UI>Browser>Omnibox