Revert "Fix inverted logic for MusicFX inclusion"

This reverts commit 555f8460a679fc1f6e08585381b88810588909d2.

Change-Id: Ie6529c1c11b31a09036c5a7592fddb844edbca47
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