Summary:
Encountered when trying to build the sample app on iOS. Seemed `initWithComponentProvider` is now for Swift only and cannot be called in Objective-C.
Change to call `initWithComponentProviderFunc` instead
Reviewed By: passy
Differential Revision: D21629319
fbshipit-source-id: bf39f67ad22259b9c72694e43c507f8869e7bf22