Pass LockscreenIconController around instead of LockIcon.

This also makes KeyguardIndicationController properly injectable, and
moves some of the LockIcon touch-handling that was happening inside
of it into the LockscreenIconController.

To make KeyguardIndicationController injectable, a new
WakeLock.Builder was added that can be injected and used to create
new WakeLocks as needed.

Bug: 150393918
Test: atest SystemUITests && manual
Change-Id: I3ad871164a822c0c63c0e32da777beb287144a35