rpm: Fold libsss_sudo and libsss_autofs back into the main SSSD package
    
    https://fedorahosted.org/sssd/ticket/1845
    
    libsss_sudo and libsss_autofs are separate packages that contain just a
    single client library with no additional dependencies. This separation
    comes from the F-17 timeframe where the feature was really just a tech
    preview so we didn't want it to be packaged in sssd proper. On the other
    hand users are getting regularly confused about "sudo not working" when
    all they really miss is the single library.
    
    This patch moves the files owned by the libsss_autofs and libsss_sudo
    packages back to the main sssd package. We also no longer build the
    libsss_sudo documentation by default and do not ship the header file as
    it was just a private one.