mobile.toggle was folded into mobile.startup in
mobileFrontend, so moving references to that instead.
- Changing require statements
- moving skinStyles/mobile.toggle/minerva.less to
skinStyles/mobile.startup/toggle.less
- Replacing references to mobile.toggle in skin.json
Depends-On: Iecc1870f08532e8c7893861afdd54f069da54be2
Bug: T210208
Change-Id: Ie67cd50a2d042fbbaaef348b9b62d64193900d78