Merge pull request #2925 from popcornmix/gpu_timestamps

[rbp/omxplayer] Use timestamps given to gpu as GetCurrentPts

diff --cc xbmc/cores/omxplayer/OMXPlayerAudio.cpp
Simple merge

diff --cc xbmc/cores/omxplayer/OMXPlayerVideo.cpp
Simple merge

diff --cc xbmc/cores/omxplayer/OMXPlayerVideo.h
Simple merge

diff --cc xbmc/cores/omxplayer/OMXVideo.cpp
Simple merge

diff --cc xbmc/cores/omxplayer/OMXVideo.h
Simple merge