testing/apache2-mod-perl: more refined patch to work with perl 5.22

This patch is replaces the previous one: http://patchwork.alpinelinux.org/patch/851/

- all unused patches and post-install script are removed
- added the latest patch from https://rt.cpan.org/Public/Bug/Display.html?id=101962#txn-1558194
- many tests are fail, so 'make test' is not included in build()
- some minor cleanups in APKBUILD

Now apache not crashes to segfault with this module ;)