Let the build system determine which AudioPack goes to the final zip

Change-Id: Id458aaedd22aabee5e10cd2a8a42068e0146d0f5
set legacy qcom/display variant to exclude fence sync stuff in frameworks/native

We used our own display repo, so this doesn't indicate we will use
CM's repo instead.

Change-Id: I277288f0298adc068054ddd1b88a2efecfaa6ac3
Kernel 3.0.80

Change-Id: Ifa054fcf96452ca41b4213954d6130eea65d181f