Merge "MainUser permanent admin by default" into udc-dev

    <integer name="config_userTypePackageWhitelistMode">13</integer> <!-- 1+4+8 -->

    <!-- Whether the main user is a permanent admin user. If the main user is a permanent admin user

     it can't be deleted or downgraded to non-admin status. -->

    <bool name="config_isMainUserPermanentAdmin">false</bool>

     it can't be deleted or downgraded to non-admin status.

     This is generally only relevant on headless system user mode devices; on other devices, the

     main user is the system user which is always a permanent admin anyway. -->

    <bool name="config_isMainUserPermanentAdmin">true</bool>

    <!-- Whether switch to headless system user is allowed. If allowed,

    headless system user can run in the foreground even though it is not a full user. -->