daemon: Also override kernel-modules-core

Unfortunately rpm-ostree requires this right now; we have an issue
and code to provide a better API in coreos/rpm-ostree#2542
But using that will require shipping the updated rpm-ostree in RHEL 8.6.z
or at least OCP 4.12.z, which is problematic.

Because we know the new MCD will always be upgrading to RHEL9,
for now let's update this hardcoded list.  In the future we can
detect when the running host has `--remove-installed-kernel` and
use it instead.

pkg/daemon/update.go

@@ -1167,7 +1167,7 @@ func (dn *CoreOSDaemon) switchKernel(newConfig *mcfgv1.MachineConfig) error {
 	}
 
 	// TODO: Drop this code and use https://github.com/coreos/rpm-ostree/issues/2542 instead
-	defaultKernel := []string{"kernel", "kernel-core", "kernel-modules", "kernel-modules-extra"}
+	defaultKernel := []string{"kernel", "kernel-core", "kernel-modules", "kernel-modules-core", "kernel-modules-extra"}
 	// Note this list explicitly does *not* include kernel-rt as that is a meta-package that tries to pull in a lot
 	// of other dependencies we don't want for historical reasons.
 	// kernel-rt also has a split off kernel-rt-kvm subpackage because it's in a separate subscription in RHEL.