i9100g: Comment out unavailable features

Change-Id: Iecfcdb7921928e5710f7193b07c2583c04c1f0c2
i9100g: Put back symbols used by camera vendor

In correspondence to https://github.com/CyanogenMod/android_system_core/commit/4a96b3b52dcdda49f0a7a7c411600a674fb18e62

Change-Id: I459a1441a01c895eaee29020c3c1d44a52ea9825