Fix a output path for turbo module

Summary:
This moves the output location for turbo modules from build/generated/ios/react/renderer/components/ to build/generated/ios/ so that the third party modules can use Spec/Spec.h to import. In the future we might use the same folder structure for both components and modules.

Changelog: [internal]

Reviewed By: cortinico

Differential Revision: D32340162

fbshipit-source-id: 6ad7c8ae92e072cd26e44b47914afa33618acbcb