Make Toolbar ignore its minHeight if larger than height

Currently Toolbar lays out all children based on its
minHeight (if set). If that minHeight is larger than
the Toolbar height, then the children are laid out larger
than the Toolbar and clipped.

This CL fixes it back by capping the alignment height.

BUG: 29049143

Change-Id: Ia3389a906b132bb0a2ae41b27116c00744d0ddf4