It is to indicate the OSU network for suppressing sign-in notification as captive-portal when user triggers OSU procedure. Bug: 120149912 Test: ./frameworks/base/wifi/tests/runtests.sh Test: test with R2 AP for verifying that sign-in pop up doesn't happen. Change-Id: Ib00e418471fbbc7c511af8773ff305d2a27363e6 Signed-off-by: Ecco Park <eccopark@google.com>