Rework logic for MusicFX inclusion

Set the flag properly, instead of just messing around with it

P.S.5 Added the missing space. Should work now.

Change-Id: I83883bd80fe63a6ac12747d33e45ccd87ca44932
Add peregrine to build

Change-Id: Iefdc960114e1a7017b1217544366f66ab1263c58
Merge pull request #6 from CarbonDev/kk

Update