add media.metrics tracking of fatal codec errors

add error code tracking to media metrics records for codecs.
So we can learn what's going wrong (bad data, chopped data, bad code,
etc).

Bug: 65250664
Test: ran good/bad media through codecs, read 'dumpsys media.metrics'
Change-Id: Ia46bdff865fb6c965f669e4189c7be5dbc1598fe