Change generation of -package-id parameters to new CLBI entry.
Instead of computing the renamings based on componentPackageRenaming right before it gets to GHC, compute it *during configure time*. This will make some refactorings for Backpack easier. NB: I had to keep componentPackageDeps because removing it would be a big BC break. Signed-off-by: Edward Z. Yang <firstname.lastname@example.org>