Revert "Revert "Revert "Revert "Enable ADVANCED_VPN_ENABLED For Droidfood""""

This reverts commit 3822f690.

Reason for revert:
This CL should not be blocked by flaky tests in android.platform.test.scenario.sysui.multiuser.SwitchToExistingGuestAndStartOver#testSwitchToGuestAndStartOver.

see b/277329137 and b/235346731

Test: manual

Change-Id: I5cc7fceb1d036ca8c0ee4707bbac012f21b7fec4