Follow up of commit id: 1f223e37

Use a message callback of dvbpsi_h instead of printf. The decoder
table functions all use a decoder_t. In dvbpsi.h a decoder_t * is
typedefed as dvbpsi_h.
Table encoder (or generators) do not use a dvbpsi_h handle. The
DVBPSI_{ERROR,DEBUG} have been disabled in these functions for now.

The descriptors will be done in another commit.