Unrestrict granted ECM setting for older implementation

This is the same as commit 2bd94bfafc1f7c39965a9818ba5484047e4d223,
but for the legacy java RestrictedPreference

Bug: 390196024
Test: manual
Flag: EXEMPT: minor bugfix
Change-Id: Ic7d683344342559f3b9b6cc4e07d1cae6ddf29b6
5 files changed