libmediaplayerservice: Enable b-frame recording

- put back setupMPEG4EncodeParmaters call.
- Set nBFrames field to 1 for index OMX_IndexParamVideoMpeg4 and OMX_IndexParamVideoAVC
  depending on the recording profile.
- setprop encoder.video.profile depending on the format
- for H.264, set to one of base, main, high
- for MPEG4, set to one of simple, asp

Change-Id: I7b7647da76390a1adca62d7ef2c8d92365c79e01

Conflicts:

	media/libmediaplayerservice/StagefrightRecorder.cpp