audio: Reduce the amount of filtering in DL2

And bring down the volume a bit to compensate
Change-Id: I1dafa28b6b8887412107a48244c60084205605db
Set userdata size variable

Change-Id: I9d1c4f3ce7d1bbeb9c001815862d3d20d37d735f
init: Run pvrsrvinit right after the fs setup

This needs to be done as soon as possible to avoid race conditions
with zygote

Change-Id: Ice8330db9f882d44a54ac940f3adced008a6353f