Makefile: add other jf variants after de-unifying

Change-Id: Ie5438799e183756f8023c50cc514822ea5336361
GPS: enable back building of GPS stuff

Change-Id: I39b61ff184f212b83711f3bf40ae7fdb9c326fe2
Camera: enable back building of Camera library

Already done before building 1st ZIP available here: http://forum.xda-developers.com/galaxy-s4/i9505-orig-develop/rom-cyanogenmod-12-t2943934. Just forgot to make a commit :)

Change-Id: I8ba7d17ab3947904a23c2e5ad0328e6f48b606fe