Update CFXSettings icon

Summary: Change-Id: Ice4f8c99771cd1a195fe41b0684153f4276fbb5a

Test Plan: Gets proper branding but we need proper resolution icon here

Reviewers: Mustaavalkosta, michyprima, rlasalle15, randall.rushing, synergy

Reviewed By: synergy

Differential Revision: http://review.codefirex.com/D203