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

This reverts commit 47b5815ea96288e09215c7d32efe429f940be018.

Change-Id: If1160cc3ed6b4ac9eebb5a5d7ae7cd403ae851fe
Merge "Revert "added prebuilts and packages.mk and removed whisperpush"" into jaf-1.1