Build - Add "aospremote" command

* Adds the git remote for the matching AOSP repository.

Change-Id: I820599fd09985f4e21fc8013b39e0854a30c678b
Signed-off-by: STELIX <ssspinni@gmail.com>
Build - Pass OTAPACKAGE location to squisher

Pass the OTAPACKAGE location so we don't have to guess what
the package name will be. This fixes an issue when
BUILD_NUMBER is defined in an environment with automated
builds.

Change-Id: Iac04058f2266b3de6fe530b3aadb6a4ebe37ee85
Signed-off-by: STELIX <ssspinni@gmail.com>