Use registered target, instead of ve.init.Target

Depends on I468d4eb4 in core.

Uses various hacks to trick the test runner into thinking
an MW target is in use, when in fact we still use SA targets.

Change-Id: If4611307d5d7aaee4af84f86ef82faf9078043b6
Merge "Use registered target, instead of ve.init.Target"