loader: Remove the instance_info in the layer chain structure

Simplifies code, the loader instance structure is already passed down
from trampoline code to terminator code via the pInstance parameter. It doesn't
need to be added to this pCreatInfo pNext list structure.

Layers which modifiy pInstance whould do it on the way up the chain not going
down the chain.

Change-Id: I59581b94871c094995787808cf5ae2955ad0191a
2 files changed