Bug fix: timestamp deviation fail test

In mpeg2/avc/hevc decoder, after resolution change, old timestamps
are still retained by the plugin. In mpeg2 decoder these old timestamps
are being sent for the new sequence. This is corrected.

Test: Small CtsMediaTestCases
Bug: 62273493

Change-Id: Ie464e3b48df6c8f21b1dbb9d45cb3726d53285ca
3 files changed