At the moment we have Contributor: lines on some packages (but not all of them),
but often they don't represent the actual contributors to the package very well.
E.g. when we added them retroactively to the device packages we only added
the initial contributor (which isn't necessarily the person
who made most of the work for a device...)
The Git history is the most representative source for figuring out
who contributed to a package, so there is no reason to duplicate that
into the APKBUILD.
[skip ci]: way too many packages
Alpine ships `mkbootimg` with the `android-tools` package now. This
conflicts with the `mkbootimg` fork from osm0sis (see #441).
Changes:
* Rename `mkbootimg` to `mkbootimg-osm0sis` (aport and binary name)
* `mkbootimg-osm0sis`: provides `mkbootimg` now (so we don't need to
change all the device aports), update version to 2018.05.10
* Adjust our `mkinitfs` script to call `mkbootimg-osm0sis`
* Better aport description
* pkgrel_bump testcase: don't fail on deleted aport
