modem-utilities: Update OWNERS file.

BUG=None
TEST=None

Change-Id: I2eb36f23ebd7681ea53d7bd9a0922f30f6b6c8a0
Reviewed-on: https://chromium-review.googlesource.com/191922
Reviewed-by: Prathmesh Prabhu <pprabhu@chromium.org>
Commit-Queue: Ben Chan <benchan@chromium.org>
Tested-by: Ben Chan <benchan@chromium.org>
diff --git a/OWNERS b/OWNERS
index 1309439..9d909b7 100644
--- a/OWNERS
+++ b/OWNERS
@@ -1,2 +1,4 @@
+set noparent
 benchan@chromium.org
+pprabhu@chromium.org
 thieule@chromium.org