Fix(eos_cli_config_gen): Fix invalid valid value for ip_security.sa_policies.esp.encryption

[ClausHolbechArista]

Change Summary

Fix invalid valid value for ip_security.sa_policies.esp.encryption

Related Issue(s)

Fixes #3496

Component(s) name

arista.avd.eos_cli_config_gen

Proposed changes

Fix of typo in the schema for ip_security.sa_policies.esp.encryption

• aes256gcm256 -> aes256gcm128

Verified available options on EOS 4.31.1:

eos(config-s-claus-ipsec-sa)#esp encryption ?
  aes128        AES - 128-bit Advanced Encryption Standard
  aes128gcm128  128 bit AES-GCM with 128 bit ICV
  aes128gcm64   128 bit AES-GCM with 64 bit ICV
  aes256        AES - 256-bit Advanced Encryption Standard
  aes256gcm128  256 bit AES-GCM with 128 bit ICV
  null          Null Encryption
  <cr>          

How to test

N/A

Checklist

User Checklist

• N/A

Repository Checklist

• My code has been rebased from devel before I start
• I have read the CONTRIBUTING document.
• My change requires a change to the documentation and documentation have been updated accordingly.
• I have updated molecule CI testing accordingly. (check the box if not applicable)

[ClausHolbechArista]

@gusmb

[carl-baillargeon]

LGTM

[gmuloc]

LGTM