demux: ts: Check PAT for duplicate programs (fix #13970)
demux: ts: Check PAT for duplicate programs (fix #13970)

refs issues/TS/dreambox.ts
Some Dreambox produced streams have patched PAT
setting all programs pid to the recorded's.

Reject that PAT and guess content from probing then.

krichter722/vlc,xkfz007/vlc,shyamalschandra/vlc,vlc-mirror/vlc,vlc-mirror/vlc,vlc-mirror/vlc,krichter722/vlc,shyamalschandra/vlc,vlc-mirror/vlc,shyamalschandra/vlc,vlc-mirror/vlc,krichter722/vlc,krichter722/vlc,xkfz007/vlc,krichter722/vlc,shyamalschandra/vlc,shyamalschandra/vlc,xkfz007/vlc,xkfz007/vlc,shyamalschandra/vlc,shyamalschandra/vlc,xkfz007/vlc,vlc-mirror/vlc,vlc-mirror/vlc,krichter722/vlc,krichter722/vlc,xkfz007/vlc,xkfz007/vlc