Add ericrk@ to VIZ owners

Adding myself to the categories I'm familiar with.

Change-Id: I976cd2c32b858b53b0792469550806e4fd9e5e01
Reviewed-on: https://chromium-review.googlesource.com/971205Reviewed-by: danakj <danakj@chromium.org>
Commit-Queue: Eric Karl <ericrk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#544735}

components/viz/OWNERS

@@ -8,6 +8,7 @@
 # display / resources / quads / passes
 danakj@chromium.org
 enne@chromium.org
+ericrk@chromium.org
 piman@chromium.org
 vmpstr@chromium.org
 weiliangc@chromium.org
@@ -28,6 +29,7 @@ samans@chromium.org
 
 # gpu
 danakj@chromium.org
+ericrk@chromium.org
 piman@chromium.org
 sadrul@chromium.org