zeus: Add dummy camera wrapper

Change-Id: I634681f87fde29c7eff47d7f4673da6f4fd8c0be
camera: Fix compilation

Change-Id: Id7a7052f378e54d74480df56ffae0bb86890f12a
zeus-common: Cleanup wifi configuration

* Based on huawei u8860 changes from @Blefish

Change-Id: I115df0cd1a9281c37e9be634a04ee5de3d59df72