Apply hints suggested by the multi-arch hinter

Apply hints suggested by the multi-arch hinter.

• cp2k-data: Add Multi-Arch: foreign.. This fixes: cp2k-data could be marked Multi-Arch: foreign. (ma-foreign)

These changes were suggested on https://wiki.debian.org/MultiArch/Hints.

Note that in some cases, these multi-arch hints may trigger lintian warnings until the dependencies of the package support multi-arch. This is expected, see https://janitor.debian.net/multiarch-fixes#why-does-lintian-warn for details.

This merge proposal was created by the Janitor bot, and it will automatically rebase or close this proposal as appropriate when the target branch changes. Any comments you leave here will be read by the Janitor's maintainers.

Build and test logs for this branch can be found at https://janitor.debian.net/multiarch-fixes/pkg/cp2k/5f028077-01c3-49f2-9212-175d62af175a.

Debdiff

These changes affect the binary packages:

[The following lists of changes regard files as different if they have different names, permissions or owners.]

Files in second set of .debs but not in first

-rw-r--r--  root/root   /usr/lib/debug/.build-id/78/6ea9a5b5536d3b36aac065c36a61a807e6a8e9.debug

Files in first set of .debs but not in second

-rw-r--r--  root/root   /usr/lib/debug/.build-id/64/5a7dfdbfa24afa7d23b4bdb63c6ed04b2e6b21.debug

No differences were encountered between the control files of package **cp2k**

Control files of package cp2k-data: lines which differ (wdiff format)

• Multi-Arch: foreign

Control files of package cp2k-dbgsym: lines which differ (wdiff format)

• Build-Ids: 645a7dfdbfa24afa7d23b4bdb63c6ed04b2e6b21 786ea9a5b5536d3b36aac065c36a61a807e6a8e9

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