Add infrastructure for exposing FIPS status (#14127)

In future Vault Enterprise versions, we'll be building Vault with
FIPS-validated cryptography. To help operators understand their
environment, we'll want to expose information about their FIPS status
when they're running a FIPS version of Vault.

Signed-off-by: Alexander Scheel <alex.scheel@hashicorp.com>

command/server_util.go

@@ -9,3 +9,9 @@ var adjustCoreConfigForEnt = adjustCoreConfigForEntNoop
 
 func adjustCoreConfigForEntNoop(config *server.Config, coreConfig *vault.CoreConfig) {
 }
+
+var getFIPSInfoKey = getFIPSInfoKeyNoop
+
+func getFIPSInfoKeyNoop() string {
+	return ""
+}