[PORT FROM R1][Video] libmix: set correct reference POC for interlaced H264 stream.

BZ: 6801

Change-Id: I72cc0f90b061191dc4a2800a27ae01732c2ef626
Orig-Change-Id: I740fd15604444a638d9a516201200d8be0d1f4b8
Reviewed-on: http://android.intel.com:8080/19119
Reviewed-by: Sang, Shuduo <shuduo.sang@intel.com>
Tested-by: Sang, Shuduo <shuduo.sang@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>
1 file changed