Optimize .ogg files using sox

for i in `find frameworks/base/data/sounds -name "*.ogg"`; do
  sox $i -C 0 $i.ogg; mv $i.ogg $i
done

Total size of sounds folder: 54MB -> 50MB

Change-Id: I3997f823bd33453de78d7d41bf402fdce3bac7fb
Merge "Optimize .ogg files using sox" into cm-10.2