contrib: dracut: install dependent kernel modules

[jozzsi]

Motivation and Context

Eliminates the need for the following workaround

Description

This change would also eliminate the need for the following additional step/workaround in using zfs dracut module

https://openzfs.github.io/openzfs-docs/Getting%20Started/Fedora/Root%20on%20ZFS.html

Add other drivers to dracut:

if grep mpt3sas /proc/modules; then
  echo 'force_drivers+=" mpt3sas "'  >> /etc/dracut.conf.d/zfs.conf
fi
if grep virtio_blk /proc/modules; then
  echo 'filesystems+=" virtio_blk "' >> /etc/dracut.conf.d/fs.conf
fi

How Has This Been Tested?

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Performance enhancement (non-breaking change which improves efficiency)
• Code cleanup (non-breaking change which makes code smaller or more readable)
• Quality assurance (non-breaking change which makes the code more robust against bugs)
• Breaking change (fix or feature that would cause existing functionality to change)
• Library ABI change (libzfs, libzfs_core, libnvpair, libuutil and libzfsbootenv)
• Documentation (a change to man pages or other documentation)

Checklist:

• My code follows the OpenZFS code style requirements.
• I have updated the documentation accordingly.
• I have read the contributing document.
• I have added tests to cover my changes.
• I have run the ZFS Test Suite with this change applied.
• All commit messages are properly formatted and contain Signed-off-by.

[behlendorf]

Yup, that makes sense. Thanks.