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

This reverts commit 47b5815ea96288e09215c7d32efe429f940be018.

Change-Id: Iae81e10e99ba0f5d753ffd355d008604952b98a1
Merge "Revert "added prebuilts and packages.mk and removed whisperpush"" into jaf-1.1