Add eholk and gdeepti to toplevel owners

Bug: 
Change-Id: I51bef9b0b4bb109fe86d4f6f445db46c1335606f
Reviewed-on: https://chromium-review.googlesource.com/612506Reviewed-by: Brad Nelson <bradnelson@chromium.org>
Commit-Queue: Brad Nelson <bradnelson@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47324}

OWNERS

@@ -7,7 +7,9 @@ bradnelson@chromium.org
 cbruni@chromium.org
 clemensh@chromium.org
 danno@chromium.org
+eholk@chromium.org
 franzih@chromium.org
+gdeepti@chromium.org
 gsathya@chromium.org
 hablich@chromium.org
 hpayer@chromium.org