Fix #406, Pass in correct CF_EotPacket_t size to msg

[skliper]

Checklist (Please check before submitting)

• [x] I reviewed the Contributing Guide.
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Describe the contribution

• Fix #406

Testing performed CI and w/ cosmos

Expected behavior changes Correct CF_EotPacket_t size

System(s) tested on CI

Additional context None

Third party code None

Contributor Info - All information REQUIRED for consideration of pull request Jacob Hageman - NASA/GSFC