This commit updates $license variable in all APKBUILDs to comply with
short names specified by SPDX version 3.0 [1] where possible. It was
done using find-and-replace method on substrings inside $license
variables.

Only license names were updated, not "expressions" specifying relation
between the licenses (e.g. "X and Y", "X or Y", "X and (Y or Z)") or
exceptions (e.g. "X with exceptions").

Many licenses have a version or multiple variants, e.g. MPL-2.0,
BSD-2-Clause, BSD-3-Clause. However, $license in many aports do not
contain license version or variant. Since there's no way how to infer
this information just from abuild, it were left without the variant
suffix or version, i.e. non SPDX compliant.

GNU licenses (AGPL, GFDL, GPL, LGPL) are especially complicated. They
exist in two variants: -only (formerly e.g. GPL-2.0) and -or-later
(formerly e.g. GPL-2.0+). We did not systematically noted distinguish
between these variants, so GPL-2.0, GPL2, GPLv2 etc. may mean
GPL-2.0-only or GPL-2.0-or-later. Thus GNU licenses without "+" (e.g.
GPL2+) were left without the variant suffix, i.e. non SPDX compliant.

Note: This commit just fixes format of the license names, no
verification has been done if the specified license information is
actually correct!

[1]: https://spdx.org/licenses/

Saves on build time for things we won't ever use building profiled
library support for libraries and the executable, also saves
a skosh on size.

Ref difference betwen r0->r1:
$ apk info cabal
cabal-1.24.0.2-r1 description:
The Haskell Cabal

cabal-1.24.0.2-r1 webpage:
http://haskell.org

cabal-1.24.0.2-r1 installed size:
18051072

cabal-1.24.0.2-r0 description:
The Haskell Cabal

cabal-1.24.0.2-r0 webpage:
http://haskell.org

cabal-1.24.0.2-r0 installed size:
18993152

Instead of using the regular .cabal uri's, which can be changed
to allow old packages to build against newer ghc's or to fix issues
with old package authors not updating their .cabal files, use
the specific revision of the cabal files we used for bootstrapping
cabal itself.

Also add -$pkgver-$pkgrel to .cabal files from hackage, in the prepare()
function move them to package.cabal so that bootstrap.sh works.