Semi-workaround for #2027266: app drawer showing up on the side of the screen

(when booted while docked)

This isn't really a fix, but we now have the activity report the configuration
it actually launched in, so the activity manager will later adjust it if
needed.  Should help us recover from hitting the race in this particular case.

Change-Id: I3bb83a48c2d692b4cb1822d8ae7d924cfa9187b2