[aml] bump XBMC-PVR to 1.6.5
Add upstream feature to configure/adjust PVR buffers
Merge pull request #60 from JoeKar/update/pvr

Feature: Add upstream feature to configure/adjust PVR buffers
[aml] sync xbmc version, tvheadend fix
[aml] sync xbmc version, audio/video fixes
Merge remote-tracking branch 'upstream/master' into develop