DESKPROFILE: Soften umask for the domain's dir
    
    The default umask (0177) is way too strict, not allowing us to create
    the domain's dir, which has to have its mode set as 751.
    
    In order to solve this, let's soften the umask to 0026.
    
    This issue was exposed due to CAP_DAC_OVERRIDE being removed from Fedora
    package.
    
    Resolves:
    https://pagure.io/SSSD/sssd/issue/3621
    
    Signed-off-by: Fabiano Fidêncio <fidencio@redhat.com>
    
    Reviewed-by: Simo Sorce <simo@redhat.com>