[release-4.9] Allow cpb to be statically compiled / exempt from FIPS compliance

[openshift-cherrypick-robot]

This is an automated cherry-pick of #511

/assign jupierce

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[jupierce]

cpb dynamic linking is causing failures in CI. This environment variable is already being set downstream and has passed CI in 4.14. Since there is zero risk to the product and the problem is blocking useful work on 4.12, accelerating backports to 4.6 by force merging.