Revert "Switch vigor to CyanogenMod code where possible"

This reverts commit c186198b92607395e1b6498960e2946fbfec302f.

There they go again. CyanogenMod, after doing so much to make building legacy devices
easier has suddenly made them unbuildable again, at least for vigor. So, I'm reverting
to the old repos for now until it becomes more clear how CM's legacy qcom support is
going to play out.