Add custom certificates for UEFI

[meerkampdvv]

Description

To support self signed kernel modules we need to add custom public keys to the UEFI

Use Case(s)

Use self signed Kernel Modules in vms build by packer

Potential configuration

upload custom-cert.der to vmware datastore.

  configuration_parameters = {
    "uefi.secureBoot.dbDefault.file0" = "custom-cert.der"
    "uefi.secureBoot.dbDefault.value0" = "#######"
  }

Potential References

https://knowledge.broadcom.com/external/article/377306/secure-boot-custom-certificates.html