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

This reverts commit 47b5815ea96288e09215c7d32efe429f940be018.

Change-Id: I485e7ac3c90fb2488d5801e8cbafe4a7b8096332
Merge "Revert "added prebuilts and packages.mk and removed whisperpush"" into jaf-1.1