manifest: Use 'system-configuration' manifest

[travier]

Packages have been split out from fedora-coreos-base to improve sharing with RHCOS.

[travier]

Extra care should be applied here to make sure we are not adding/removing unexpected packages in this PR.

[ashcrow]

 + cosa fetch
fatal: Missing /dev/kvm
error: build error: error building at STEP "RUN /bin/bash -c set -o errexit; umask 0002; ./ci/build-test.sh": error while running runtime: exit status 1 

This is popping up consistently in this repo.

[cgwalters]

It's #506

[miabbott]

/hold

This is in pursuit of adding stalld into RHCOS, but that package won't be included in RHEL until 8.4 GAs

[travier]

Depends on coreos/fedora-coreos-config#885

[travier]

This includes updates in f-c-c to move stalld back to being FCOS specific until it is included in RHEL.
/unhold

[travier]

Updated now that coreos/fedora-coreos-config#885 is merged.

[travier]

Will have to double check that no package are added or dropped here.

[miabbott]

Building HEAD and then the PR shows no package changes:

ostree diff commit from: 3544456bf136761d63a11b89375c38e3f5c5774c2c2af3ab7da2aa0ab60deb02                                                                                                                                                                                                                                     
ostree diff commit to:   738f0359f5885dcf7537ab01c7c231ac883e66c980ec984c2ada075c884448ab
New image input checksum: 1f3e4f5d0c43b64be6cdb2c5d2ff90c29a8192650ad8d21debf5c9790fed0493
None                                                                           
New build ID: 48.83.202104011331-0

[miabbott]

/approve

[travier]

Will be re-updating with coreos/fedora-coreos-config#927

[travier]

Updated. Now requires #527

[travier]

Will need either this one or #530 before we branch (for stalld). Edit: We may need both.

[travier]

This one should be ready now that #530 is merged.

[miabbott]

/lgtm

[openshift-ci-robot]

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