Prefix local prebuilt libraries.
Prefix local prebuilt libraries.

This is to keep them from conflicting with other prebuilts.

Change-Id: I183e51998c72731227c81a7ce80fa04f8e706a7e

geekboxzone/lollipop_external_jarjar,Omegaphora/external_jarjar,ThirdProject/android_external_jarjar,android-ia/platform_external_jarjar,byterom/android_external_jarjar,CyanogenMod/android_external_jarjar,DirtyUnicorns/android_external_jarjar,GraphiteSoftware/external-jarjar