DVB: added support for LATM AAC

To be used with DVB-T2.
Support for DVB-T2

Basic support for DVB-T2. New option for changing the channel switching approach.

Signed-off-by: xpc1000 <xavier_portell@hotmail.com>
Merge branch 'DVB-T2-Final' of https://github.com/xpc1000/mpc-hc into master.