DashPlayer: Fix in DashCodec for Adapative Streaming

Fix in DashCodec for Adaptive Streaming

Change-Id: Ie1e30627c8095a7210ad4e16c96f5f79abff22c6
CRs-fixed: 596767
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_hardware_qcom_media-caf into HEAD