Revert "added prebuilts and packages.mk and removed whisperpush"

This reverts commit 47b5815ea96288e09215c7d32efe429f940be018.

Change-Id: Ib7f30991641274565548bf08b244af00a4f333e6
Merge "Revert "added prebuilts and packages.mk and removed whisperpush"" into jaf-1.1