PVR: add re-implemented pvrsrvinit and glue

as the proprietary pvrsrvinit is non-PIE, add a re-implementation
of it.

Change-Id: I1842738e223b2ac302ef19ae6731ad0b492ade4d
wifi: disable debugging

Change-Id: Id6902ebb49b91f65c69b84090ce0aafb1b5a04ad