Revert^2 "StagefrightRecoder: Disabling B-frame support"

This reverts commit fea6b6fb.

Reason for revert: To start another ABTD run to find out if the build failure is reproducible.
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:61ed373ba34ddad4f7bbb3469981ca0a59ed78a8)
Merged-In: I6b722876328a71aa5b3c49b53e487a3af966f998
Change-Id: I6b722876328a71aa5b3c49b53e487a3af966f998