feat(profiles): Add lbzip2 to base system package set

lbzip2 is surprisingly fast and is particularly useful for dealing with
large archives and filesystem images. In a similar vein pbzip2 has been
used for handling binary packages for a while but lbzip2 seems a bit
better. Since I plan on using the heck out of lbzip2 add it to the build
and system package sets. While mucking around might as well start
swapping pbzip2 for lbzip2 for consistency's sake although it doesn't
seem to matter much for binary packages. For now we can only switch
make.conf for targets, the host make.conf can't change till everyone's
SDK has lbzip2 installed.
Merge pull request #54 from marineam/lbzip2

feat(profiles): Add lbzip2 to base system package set