Add more ozone input OWNERS

Change-Id: I11cef97eb166263b99b09e4fca09fcc1c34fb494
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1914965Reviewed-by: Robert Kroeger <rjkroege@chromium.org>
Commit-Queue: Michael Spang <spang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#715059}

ui/events/ozone/OWNERS

@@ -2,4 +2,10 @@ rjkroege@chromium.org
 spang@chromium.org
 kpschoedel@chromium.org
 
+# Touchpad input & touchscreen noise filtering
+seobrien@chromium.org
+
+# Touchscreen palm rejection
+robsc@chromium.org
+
 # TEAM: ozone-dev@chromium.org