Support NAT service_profile for L3 port_channel interface

[ashenoy-arista]

Enhancement summary

When checking for keys within eos_cli_config_gen.schema.yml, we do have entry for key “service_profile” under “ethernet_interfaces” -> “ip_nat”
as below

 keys:
            service_profile:
              type: str
              description: NAT interface profile.

But this section is missing from schema for “port_channel_interfaces” -> “ip_nat”
We would also need to add corr. logic in jinja template files to check for ip_nat -> “service_profile” for port_channel_interface to generate EOS cli command for nat profile.
File: python-avd/pyavd/_eos_cli_config_gen/j2templates/eos/port-channel-interfaces.j2

Which component of AVD is impacted

eos_cli_config_gen

Use case example

Support Nat service profile for Port-Channel interface
This will help in allowing Direct Internet Exit policy for port-Channel interface

Describe the solution you would like

Support Nat service profile for Port-Channel interface
This will help in allowing Direct Internet Exit policy for port-Channel interface

Describe alternatives you have considered

No response

Additional context

No response

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