Merge "Remove incorrect statement from docs" into udc-dev

         * The update ownership enforcement can only be enabled on initial installation. Set

         * this to {@code true} on package update is a no-op.

         *

         * Apps may opt themselves out of update ownership by setting the

         * <a href="https://developer.android.com/guide/topics/manifest/manifest-element.html#allowupdateownership">android:alllowUpdateOwnership</a>

         * attribute in their manifest to <code>false</code>.

         *

         * Note: To enable the update ownership enforcement, the installer must have the

         * {@link android.Manifest.permission#ENFORCE_UPDATE_OWNERSHIP ENFORCE_UPDATE_OWNERSHIP}

         * permission.