Add all DLT values

[ein-shved]

Hi! Sorry for possible necrobump but your project is useful for me now with LEDE with RADIOTAP interface. So I implement one of TODOs and it could be useful for someone else.

Automated using dlt_genlua.sh script which generates part of C code for pcap_make_dlt function. Arguments are stored in linktypes.txt file which was generated from the source of http://www.tcpdump.org/linktypes.html WEB page with sed utility.