Fix permissions for lshal

Instead of IServiceManager::debugDump, lshal now relies
on list and get. lshal itself will call getDebugInfo
on each interface, so that each interface can check if
the call is from a root user, then decide to leak
addresses or not.

Bug: 34899586

Test: lshal

Change-Id: I8eb9168c3b071b8b1f27dbeaa0ac27d2067200d7