[yang] interface yang model is missing mac_addr key

[assafho]

Description

interface yang model is missing the mac_addr key.
RIF mac address config was defined at sonic-net/sonic-swss#814, however,
it is not defined in https://github.com/sonic-net/sonic-buildimage/blob/master/src/sonic-yang-models/yang-models/sonic-interface.yang

Steps to reproduce the issue:

Describe the results you received:
interface yang model is missing mac_addr key

Describe the results you expected:
interface yang model should include mac_addr key

Output of show version:

(paste your output here)

Output of show techsupport:

(paste your output here or download and attach the file here )

Additional information you deem important (e.g. issue happens only occasionally):

I suggest to add the following to sonic-interface.yang:

import ietf-yang-types {

prefix yang;

}

...
...

leaf mac_addr {

type yang:mac-address;

}

[zhangyanzhao]

@prsunny can you please help to take a look at this issue? You approved the PR in 2019. Thanks.

[dgsudharsan]

@prsunny Any update on this?

[liat-grozovik]

any update on this issue?