perl-ptest: various fixes

perl-ptest: various fixes

Improve reproducibility: Remove all build host references from
distributed files.

Do not package non-linux OS related files.
Also remove some additional files not needed by run-ptest. (There are
probably still more files that can be removed, but as long as they
don't leak build host references they are harmless).

Fix the expected checksum of MakeMaker/lib/ExtUtils/Liblist/Kid.pm
to match the one expected: We modified the file, but did not
recalculate/update the file checksum accordingly.
(This fixes the only failing test.)

Signed-off-by: Juro Bystricky <juro.bystricky@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>