[oe] Why was lldpad removed.

[Lei, Maohui]

Hi all

I noticed that lldpad has been removed. And the commit log is : 
   " Based on this thread:

            http://comments.gmane.org/gmane.comp.handhelds.openembedded/70890

    it seems that lldpd is a more complete implementation of the LLDP
    protocol.  Remove this implementation to provide better direction to
    newcomers and to attempt to focus support for a single implementation in
    the meta-networking layer.
    " 

But reference to the homepage of lldpad, it is not only an implementation of the LLDP protocol, the most important capabilities are:
 * Operation of the DCBX protocol(IEEE 802.1Qaz) for interfaces which support the DCB rtnetlink interface.
 * Configuring the DCB settings of the network driver based on the operation of DCBX.

And in Fedora and Ubuntu, lldpad and lldpd are provided at the same time. So, for users who want DCBX, it seems a pity to remove lldpad in meta-oe.

Best regards
Lei Maohui