These codec IDs are not in libav 0.8.6, so just disable the hinting.

The change in OMXReader.cpp is likely important, but... hack time.
Something to fix for later.
Adjust the includes and remove unused APIs that are not in libav 0.8.6
Adjust the Makefile{.include} for building on an RPi.

The Makefile.include was generally taken from wrightrocket/omxplayer,
then tweaked to use what is installed on the system. Then some minor
tweaks to the Makefile to fetch the installed libraries (/opt/vc/lib)
and skip libraries that are not part of libav 0.8.6.