dvbapi: simplify protocol for BOXTYPE_PC

BOXTYPE_PC now uses same socket for providing CA_SET_PID
and CA_SET_DESCR back to the application.
UDP is now deprecated. It will be removed in the future.


git-svn-id: http://streamboard.de.vu/svn/oscam/trunk@9060 4b0bc96b-bc66-0410-9d44-ebda105a78c1