packages: T6230: include iptables modules in vyos-ipt-netflow

[dmbaturin]

Change summary

Without those libs, the kernel module can be loaded, but iptables targets to send packets to the module for accounting are not available.

Testing

Both these commands should work:

modprobe ipt_NETFLOW destination=127.0.0.1:2055

iptables -I FORWARD -j NETFLOW

Package contents after the change:

vyos_bld@fa920bd24f5a:/vyos/scripts/package-build/linux-kernel$ dpkg-deb -c ./vyos-ipt-netflow_2.6-17-g0eb2092_amd64.deb 
drwxr-xr-x 0/0               0 2025-04-17 15:50 ./
drwxr-xr-x 0/0               0 2025-04-17 15:50 ./usr/
drwxr-xr-x 0/0               0 2025-04-17 15:50 ./usr/share/
drwxr-xr-x 0/0               0 2025-04-17 15:50 ./usr/share/doc/
drwxr-xr-x 0/0               0 2025-04-17 15:50 ./usr/share/doc/vyos-ipt-netflow/
-rw-r--r-- 0/0             162 2025-04-17 15:50 ./usr/share/doc/vyos-ipt-netflow/changelog.gz
drwxr-xr-x 0/0               0 2025-04-17 15:50 ./lib/
drwxr-xr-x 0/0               0 2025-04-17 15:50 ./lib/x86_64-linux-gnu/
drwxr-xr-x 0/0               0 2025-04-17 15:50 ./lib/x86_64-linux-gnu/xtables/
-rwxr-xr-x 0/0           15936 2025-04-17 15:50 ./lib/x86_64-linux-gnu/xtables/libip6t_NETFLOW.so
-rwxr-xr-x 0/0           15936 2025-04-17 15:50 ./lib/x86_64-linux-gnu/xtables/libipt_NETFLOW.so
drwxr-xr-x 0/0               0 2025-04-17 15:50 ./lib/modules/
drwxr-xr-x 0/0               0 2025-04-17 15:50 ./lib/modules/6.6.79-vyos/
drwxr-xr-x 0/0               0 2025-04-17 15:50 ./lib/modules/6.6.79-vyos/extra/
-rw-r--r-- 0/0          152775 2025-04-17 15:50 ./lib/modules/6.6.79-vyos/extra/ipt_NETFLOW.ko
vyos_bld@fa920bd24f5a:/vyos/scripts/package-build/linux-kernel$ 

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Code style update (formatting, renaming)
• Refactoring (no functional changes)
• Migration from an old Vyatta component to vyos-1x, please link to related PR inside obsoleted component
• Other (please describe):

Related Task(s)

Related PR(s)

Checklist:

• I have read the CONTRIBUTING document
• I have linked this PR to one or more Phabricator Task(s)
• My commit headlines contain a valid Task id
• My change requires a change to the documentation
• I have updated the documentation accordingly

[github-actions]

👍
No issues in PR Title / Commit Title

[c-po]

Add missing shared libraries to the resulting package.

[sever-sever]

Add required libs to binary.