This also updates a few submodules to have their upper-bounds on
`time` relaxed to allow `time-1.5`. The only package that can't be
upgraded yet is `Cabal` due to API changes breaking `ghc-cabal`. This
needs to be addressed in a future commit.

This commit updates several submodules in order to bump
the upper bounds on `base` of most boot packages

Moreover, this updates some of the test-suite cases which have
version numbers hardcoded within.

However, I'm not sure if this commit didn't introduce the following
two test-failures

   ghc-api  T8628 [bad stdout] (normal)
   ghc-api  T8639_api [bad stdout] (normal)

This needs investigation

Also set `submodule.<name>.ignore=none` explicitly for the recently
converted submodules, as those are not supposed to have untracked/unignored
files lying around.

Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>

Specifically, the following sub-repos/modules are converted:

 - libffi-tarballs
 - libraries/array
 - libraries/deepseq
 - libraries/directory
 - libraries/dph
 - libraries/filepath
 - libraries/haskell2010
 - libraries/haskell98
 - libraries/hoopl
 - libraries/hpc
 - libraries/old-locale
 - libraries/old-time
 - libraries/parallel
 - libraries/process
 - libraries/stm
 - libraries/unix
 - nofib
 - utils/hsc2hs

N.B. ghc-tarballs is not converted as it will probably be handled
     differently in the future.

Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>