f32: add earlyoom to workstation
    
    F32 Workstation feature to enable earlyoom by default.

    https://fedoraproject.org/wiki/Changes/EnableEarlyoom

    https://pagure.io/fedora-workstation/issue/119

    https://pagure.io/fesco/issue/2320

    Signed-off-by: Chris Murphy <chrismurphy@fedoraproject.org>