[sonic-yang-models]: Add default values in leaf-lists of ports in son…

[praveen-li]

…ic-acl and sonic-portchannel.

Changes:
-- Add default values in leaf-lists of ports in sonic-acl
-- Add default values in leaf-lists of ports in sonic-portchannel
-- Remove members from sonic-vlan VLAN table. Note this will force Network Operations
team to change the config.

Signed-off-by: Praveen Chaudhary pchaudhary@linkedin.com

- What I did
Changes:
-- Add default values in leaf-lists of ports in sonic-acl
-- Add default values in leaf-lists of ports in sonic-portchannel
-- Remove members from sonic-vlan VLAN table. Note this will force Network Operations
team to change the config.

- How I did it
Added String Type and DEfault value in YANG.

- How to verify it

Default value leaf-list testing:


============================== 1 tests deselected ==============================
=================== 1 passed, 1 deselected in 93.69 seconds ====================
svc-lnos-user@server10:/home/svc-lnos-user/praveen/sonic-buildimage/src/sonic-swss/tests$ cat test_port_dpb_system.py | grep -A 4 -B 4 Uncomment

        # Verify port is removed from ACL table
        self.dvs_acl.verify_acl_table_count(1)

        #TBD: Uncomment this, or explain why Ethernet0 is being added back to ACL table
        # Also, string "None" is being added as port to ACL port list after the breakout
        self.dvs_acl.verify_acl_group_num(0)

        # Verify child ports are created.
svc-lnos-user@server10:/home/svc-lnos-user/praveen/sonic-buildimage/src/sonic-swss/tests$ sudo pytest --dvsname=vs-jk test_port_dpb_system.py -k test_port_breakout_with_acl --junitxml=report.xml | tee out
============================= test session starts ==============================
platform linux2 -- Python 2.7.12, pytest-3.3.0, py-1.6.0, pluggy-0.6.0
rootdir: /home/svc-lnos-user/praveen/sonic-buildimage/src/sonic-swss/tests, inifile:
collected 2 items

test_port_dpb_system.py .                                                [100%]

 generated xml file: /home/svc-lnos-user/praveen/sonic-buildimage/src/sonic-swss/tests/report.xml
============================== 1 tests deselected ==============================
=================== 1 passed, 1 deselected in 94.25 seconds ====================

- Description for the changelog

- A picture of a cute animal (not mandatory but encouraged)

[zhenggen-xu]

@praveen-li Can you please add the VLAN table changes to DPB wiki since it require operational changes?