bug 872992 - clean up leo and hamachi hardcodes
Follow up to bug 872992 - Undo changes to gtest
Add support helix device.
There is no necessary to fix the revision of hardware/ril.
To modify some repositories in helix.xml from master to v1-train.
use local codeaurora, aosp mirror

Change-Id: I583272322819ca15b1c45f89e9bb108d635ed202