camera: pimp media profiles

-lower 4k video bitrates
-increase aac audio quality

Change-Id: I1cd0db925ee93ec5e8cfebebdb03f97e4c846672
audio: set explicit mono for camcorder-mic to get audio on both channels

not really sure why this helps but lets do it for now :)
this needs some review after hal update

Change-Id: I3213f74d4da3212ccbcf325afa8d573b9620e24c
Merge changes I3213f74d,I1cd0db92 into android-4.4

* changes:
  audio: set explicit mono for camcorder-mic to get audio on both channels
  camera: pimp media profiles