Alias Dialer's settings activity for use as caller-info settings

The settings related to managing CallerInfoApi are within Dialer's
settings activity. Adding an activity alias to this component for other's
to recognize this as the place to find caller-info settings.

Change-Id: I1b2a69ae98c7ac184b3d6814e1eb801eb655c9a4
Issue-Id: FEIJ-730
(cherry picked from commit 03c2c848)