Overlay fixes

Change-Id: I5c2affc57a671963ddd3da8df415fc9d6774c89c
Add prima module symlink

Change-Id: If1328b39033d1a95b5f296abc9acb8dca5f78b9b
No mount_all in ICS

Change-Id: Ib3b49b79289ce04b03d5e4fde115cdf161594653