stagefright: define mpeg2 HighP level constant
am: 9e332babb9

* commit '9e332babb92d329c3c9b2e58fef77252cc11e52b':
  stagefright: define mpeg2 HighP level constant

Change-Id: I4db62224022bccc89ee4fdda2e32813a1f1c074d