Update Developer options icon for TwoPanel only.

Screenshot: https://screenshot.googleplex.com/NdAFnyNjyxa

Bug: 128314775
Test: Manual test on deadpool.
Change-Id: Iad0a2dfbbae3d6041515369c6dee78c02beb80e3
(cherry picked from commit c5ce3dd3fb648ded617738ec1cd0634f345ee9cb)
3 files changed